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Top 10 Aquarium Algae Scrapers and Magnets for Acrylic Tanks in 2027

📖 2,603 words🗓️ Published Jul 20, 2026

Acrylic tanks are lighter, clearer, and stronger than glass — but they scratch if you so much as look at them with the wrong blade. Cleaning algae off acrylic means using acrylic-safe pads and plastic blades only, never the steel razors and coarse abrasives that glass tolerates. Below are ten algae scrapers and magnet cleaners that are safe for acrylic in 2027, ranked on safety, cleaning power, build quality, and value.

Direct Answer

For acrylic tanks the best everyday tool is an acrylic-rated magnet cleaner with a felt or soft non-abrasive pad — the Flipper Nano/Standard (acrylic blade) or Magfit/Mag-Float acrylic models lead here because they cannot trap grit against the pane the way a coarse magnet can. For stubborn spots, an acrylic-safe handheld scraper with a plastic blade is the only blade you should use. Never use steel. The picks below are all acrylic-friendly.

flowchart TD A[Cleaning an ACRYLIC tank?] --> B{Type of algae} B -->|Light film| C[Soft magnet pad: Mag-Float acrylic or Flipper] B -->|Stubborn spots| D[Handheld acrylic scraper, PLASTIC blade only] B -->|Coralline on reef| E[Flipper acrylic blade, gentle angle] C --> F[NEVER use steel blades on acrylic] D --> F E --> F F --> G[Rinse pad to clear grit before every pass]

flowchart TD A[Top 10 Algae Scrapers] --> B[Acrylic Safe Blades] A --> C[Magnetic Cleaners] B --> D[Plastic Scrapers] B --> E[Floating Scrapers] C --> F[Strong Magnets] C --> G[Thin Profile Magnets] F --> H[Easy Glide] G --> I[No Scratch Surface]

How We Ranked These Products

Quality and performance — weighted against real buyer priorities
Value for money — street price vs. features you will actually use
Reliability and support — warranty, returns, and owner satisfaction
Ease of use — setup, daily operation, and learning curve
Expert and owner reviews — patterns from trusted review outlets

1. Flipper Float / Flipper Standard (Acrylic Blade Model)

Flipper Float / Flipper Standard (Acrylic Blade Model)

🏆 BEST OVERALL. The Flipper dual-sided magnet cleaner has a soft scrubbing pad on one face and a blade scraper on the other, and you flip between them from outside the glass without getting your hands wet. Crucially, Flipper sells an acrylic-safe ABS plastic blade so you get scraping power without scratching. The buoyant design floats if separated, and at $25–$45 it is the most versatile acrylic-friendly cleaner available.

2. Mag-Float Acrylic Model

Mag-Float Acrylic Model

The Mag-Float is the long-standing favorite, and its acrylic-specific version uses a softer, felt-backed cleaning surface designed to glide on acrylic without grinding particles into it. It floats if it comes apart, so you won't fish it out of the substrate. Sized for different pane thicknesses, it runs $15–$40, a dependable no-frills choice for routine film removal.

3. Flipper Nano (Acrylic)

Flipper Nano (Acrylic)

Flipper Nano (Acrylic)

For nano and rimless acrylic tanks, the Flipper Nano brings the same flip-to-scrape design in a compact body sized for thinner panes. It is ideal for desktop reefs and small planted acrylics where a full-size magnet is too strong or bulky. With the acrylic blade fitted, it cleans gently and effectively for $20–$35.

4. Continuum AquaBlade Acrylic Handheld Scraper

Continuum AquaBlade Acrylic Handheld Scraper

💎 BEST VALUE. The Continuum AquaBlade-P and similar handheld acrylic scrapers use replaceable plastic blades on a long handle, letting you reach the bottom of a deep tank and tackle stubborn spots a magnet can't shift. Plastic blades are the only safe choice for scraping acrylic. At $10–$20 with spare blades, it is an inexpensive must-have companion to any magnet cleaner.

5. Kent Marine Pro-Scraper (Acrylic Blade)

Kent Marine Pro-Scraper (Acrylic Blade)

The Kent Marine Pro-Scraper is a telescoping handheld scraper that accepts both stainless and acrylic-safe plastic blades — for acrylic you fit only the plastic blade. The extending handle reaches deep tanks and stubborn corners. Priced $15–$30, it is a sturdy reach tool for serious algae removal.

6. Two Little Fishies Nano MagnaSweep (Acrylic)

Two Little Fishies Nano MagnaSweep (Acrylic)

Two Little Fishies makes the MagnaSweep magnetic cleaners with models rated for acrylic, using soft cleaning faces that won't mar the surface. The reef-focused brand engineers them for strong hold on thicker panes without abrasiveness. Expect $20–$40 depending on size, a quality pick for reef acrylics.

7. Algae Free / Hammerhead Magnet Cleaner (Acrylic)

Algae Free / Hammerhead Magnet Cleaner (Acrylic)

For large and thick-walled acrylic tanks, Algae Free's Hammerhead and similar heavy-duty magnets deliver the holding strength to clean panes 1 inch thick or more, with soft pads specified for acrylic. These are pro-grade tools for big display tanks, priced $50–$150+. Match the magnet strength to your exact pane thickness.

8. Mag-Float 350A (Large Acrylic)

Mag-Float 350A (Large Acrylic)

The Mag-Float 350A is the brand's large acrylic-rated model for sizable tanks, carrying enough strength for thick panes while keeping the gentle felt cleaning surface. It floats if separated and covers a lot of glass per pass. Pricing runs $30–$55, a workhorse for bigger acrylic builds.

9. Bristle / Soft Pad Hand Scrubber for Acrylic

Bristle / Soft Pad Hand Scrubber for Acrylic

A simple acrylic-safe hand pad or soft scrubber (felt or fine non-scratch pad) is the cheapest way to wipe a film off an acrylic pane during a water change, when your hand is already in the tank. Avoid any green or coarse kitchen scrub pad, which will scratch. These cost $3–$8 and are a useful backup to a magnet.

10. Tunze Care Magnet (Acrylic-Compatible)

Tunze Care Magnet (Acrylic-Compatible)

Tunze's Care Magnet line includes models compatible with acrylic, built to the brand's German engineering standards with strong, controlled magnetic hold and soft cleaning faces. They are a premium pick for keepers who want precision and longevity. Prices typically fall $40–$90 by size.

How to Clean Acrylic Without Scratching

The cardinal rule of acrylic is no steel, no grit, no coarse pads — ever. Use only plastic blades and soft felt or acrylic-rated magnet faces. Before each pass, rinse the magnet's cleaning pad to flush out any sand or coralline fragments that could become a scratching grit. Pull the magnet away from the substrate so it doesn't pick up sand, and for hard coralline spots use light pressure with the acrylic blade at a shallow angle. A scratch in acrylic is permanent, so patience beats force every time.

Maintenance Tips to Extend the Life of Your Acrylic Cleaner

Even the best algae scraper will degrade faster if you don’t rinse and store it properly. Acrylic tanks are unforgiving — a single grain of sand trapped in a pad can leave a permanent swirl. Here’s how to keep your scraper or magnet performing like new for years:

Rinse the pad or blade after every use. Run it under tap water and gently rub the surface with your fingers to dislodge any grit. For magnetic cleaners, pop the inner magnet out and rinse both halves. Let them air-dry completely before storing to prevent mold or mineral buildup.
Inspect the cleaning surface before each pass. Run your fingertip across the pad or blade edge. If you feel any hard particles (crushed snail shell, stray gravel, dried algae crust), pick them off or replace the pad. A single scratch is permanent on acrylic.
Store magnets with the cleaning pad facing up or on a soft towel. Placing them face-down on a countertop can embed dust into the pad. Some users keep a small microfiber cloth under their magnet when not in use.
Replace pads every 3–6 months depending on usage frequency. Felt pads (common on Mag-Float and Flipper) eventually wear thin and lose their cushion, increasing scratch risk. Many brands sell replacement pads for $5–$10.
For handheld scrapers, sharpen the plastic blade edge occasionally. A dull blade requires more pressure, which can dig into acrylic. Run the edge gently along a fine-grit sanding block (1000+ grit) at a 45-degree angle for two passes — this restores a clean cutting edge without removing too much material.

A well-maintained cleaner not only protects your tank but also saves you money on replacements. Most acrylic-safe cleaners last 2–4 years with proper care, compared to 6–12 months if neglected.

How to Match a Cleaner to Your Tank Size and Algae Type

Not all acrylic scrapers work well on every tank. The wrong size or style can make cleaning frustrating or even damage the acrylic. Here’s a simple guide based on tank dimensions and common algae challenges:

Tank Size (gallons)	Recommended Cleaner Type	Why It Works
5–20 (nano)	Small magnetic cleaner (e.g., Mag-Float 100, Flipper Nano)	Thin acrylic (3–6mm) requires low magnetic force to avoid pinching; small pad reaches tight corners
20–55	Medium magnet or handheld scraper (e.g., Flipper Standard, Mag-Float 200)	Good balance of cleaning area and magnetic strength for 6–10mm acrylic; handheld for spot-cleaning
55–120	Large magnet with strong pull (e.g., Mag-Float 400, Flipper Max)	Thicker acrylic (10–16mm) needs strong magnets to stay attached; wider pad covers more surface
120+	Extra-large magnet or dual-blade scraper (e.g., Flipper Max, Tunze Care Magnet 030)	Heavy-duty cleaning for 16–25mm acrylic; some models have adjustable magnetic strength

For algae type, match your tool to the growth:

Green dust / film algae — Any soft magnet pad works; no blade needed.
Green spot algae (GSA) — Plastic blade scraper (handheld or magnet-mounted) is best. GSA adheres tightly and requires a scraping edge, not just a pad.
Hair algae / string algae — A soft pad can pull it loose, but a plastic blade scraper with a gentle angle lifts it more cleanly without tearing strands that float away.
Coralline algae (saltwater) — This hard, crusty algae demands a sharp plastic blade. Use the Flipper acrylic blade or a dedicated acrylic scraper with a replaceable plastic edge. Apply light pressure and work slowly — coralline can chip if scraped aggressively.

If you have a mixed reef tank with both film algae and coralline, a magnet cleaner with a removable scraper attachment (like the Flipper or Tunze models) gives you two tools in one without switching devices.

Common Mistakes That Scratch Acrylic (and How to Avoid Them)

Even experienced aquarists make errors that leave permanent marks. Here are the most frequent scratch-causing habits and simple fixes:

Mistake 1: Using a glass-rated scraper on acrylic. Glass scrapers often come with steel blades or coarse abrasive pads. Even if the packaging says “multi-surface,” check the blade material. Steel is never safe for acrylic. Fix: Only buy cleaners explicitly labeled “acrylic-safe” or “plastic blade only.”

Mistake 2: Cleaning dry acrylic. Algae scrapers work best on wet surfaces. Dry acrylic is more brittle and scratches easier. Fix: Always wet the area with tank water (or a spray bottle of RO/DI water) before scraping. A thin film of water lubricates the blade and reduces friction.

Mistake 3: Pressing too hard with a magnetic cleaner. Strong magnets can pinch the acrylic if you apply force. This creates a white stress mark or a hairline crack over time. Fix: Glide the magnet gently — let the pad do the work. If algae isn’t coming off, switch to a handheld scraper instead of pushing harder.

Mistake 4: Not cleaning the tank rim before scraping. Dust, dried salt creep, and tiny debris often collect along the top edge. When you run a magnet down from the rim, that debris gets trapped under the pad. Fix: Wipe the rim with a damp cloth before starting. Rinse the magnet pad after the first pass along the top.

Mistake 5: Using the same pad for months without inspection. Pads wear down and can develop hard spots or embedded particles. Fix: Check the pad under bright light every few weeks. If it looks matted, discolored, or has any rough patches, replace it immediately.

By avoiding these five pitfalls, you can keep your acrylic tank crystal clear and scratch-free for the long haul — saving you the cost and hassle of polishing or replacing panels.

Frequently Asked Questions

Why can't I use a regular metal-blade scraper on acrylic? Steel razor blades and coarse pads scratch acrylic permanently. Acrylic is much softer than glass, so you must use plastic blades and soft, non-abrasive cleaning faces specifically rated for acrylic.

Are magnet cleaners safe for acrylic tanks? Yes, provided you use a magnet with an acrylic-rated soft pad (felt or specially designed face), not the coarser pad meant for glass. Always rinse the pad of grit before each use to prevent scratches.

How do I remove stubborn coralline algae from acrylic? Use an acrylic-safe plastic blade at a shallow angle with light, patient pressure. Soften the spot first by letting the magnet's pad work it, and never force a hard blade or steel across the pane.

What is the biggest scratch risk when cleaning acrylic? Trapped grit — a single grain of sand or a coralline chip caught under the magnet or pad will gouge a long scratch. Keep the magnet off the substrate and rinse the pad frequently.

Do magnet cleaners that float really matter? Yes. A floating magnet (like Mag-Float and Flipper designs) returns to the surface if the inner and outer halves separate, so you avoid reaching into the tank or dragging the inner piece across the bottom and scratching it.

Can I polish out a scratch in acrylic later? Light scratches in acrylic can sometimes be buffed out with acrylic polish kits, unlike glass. But deep scratches are difficult to fully remove, so prevention with the right tools is far better than repair.

flowchart TD A[Set your budget] --> B{Priority?} B -->|Best performance| C[Pick #1 Best Overall] B -->|Best value| D[Pick #2 Best Value] C --> E[Match tank size and maintenance plan] D --> E

Related on PULSE

[Top 10 Aquarium Algae Scrapers and Magnets for Acrylic Tanks](/knowledge/aq0778)
[Top 10 Magnetic Algae Scrapers for Acrylic Aquariums](/knowledge/aq0838)
[Top 10 Magnetic Algae Scrubbers for Acrylic Aquariums](/knowledge/aq0963)
[Top 10 Aquarium Magnetic Algae Scrapers for Glass Tanks](/knowledge/aq0916)
[Top 10 Aquarium Glass Scrapers and Algae Pads](/knowledge/aq0864)
[Top 10 Aquarium Algae Scrapers and Magnet Cleaners in 2027](/knowledge/aq0719)

Sources

Flipper Cleaner — acrylic blade compatibility and product guides (flippercleaner.com)
Mag-Float — acrylic vs glass model selection (mag-float.com)
Bulk Reef Supply — acrylic tank cleaning and magnet guides (bulkreefsupply.com)
Two Little Fishies — MagnaSweep product information (twolittlefishies.com)
Aquarium Co-Op — algae scraper and tank cleaning articles (aquariumcoop.com)
Melev's Reef — acrylic care and coralline removal techniques (melevsreef.com)

People also search for: best aquarium algae scrapers and magnets for acrylic tanks 2027 · top aquarium algae scrapers and magnets for acrylic tanks 2027 · top rated aquarium algae scrapers and magnets for acrylic tanks 2027 · top ranked aquarium algae scrapers and magnets for acrylic tanks 2027 · highest rated aquarium algae scrapers and magnets for acrylic tanks 2027 · aquarium algae scrapers and magnets for acrylic tanks reviews 2027

How to Choose

What to Look For

Fit for your tank size and livestock plans
Ease of cleaning and replacement parts availability
Honest owner reviews over marketing claims

FAQ

What is the best overall pick? See rank #1 above — labeled Best Overall.

What is the best budget option? Rank #2 is Best Value for shoppers optimizing spend.

How often should I maintain equipment? Follow the manufacturer schedule and test water weekly during the first month.

Bottom Line

Use rank #1 as your default Best Overall and rank #2 as Best Value, then compare the rest for your specific setup.

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# Top 10 Aquarium Algae Scrapers and Magnets for Acrylic Tanks in 2027

Acrylic tanks are lighter, clearer, and stronger than glass — but they scratch if you so much as look at them with the wrong blade. Cleaning algae off acrylic means using **acrylic-safe pads and plastic blades only**, never the steel razors and coarse abrasives that glass tolerates. Below are ten algae scrapers and magnet cleaners that are safe for acrylic in 2027, ranked on safety, cleaning power, build quality, and value.

## Direct Answer

For acrylic tanks the best everyday tool is an **acrylic-rated magnet cleaner with a felt or soft non-abrasive pad** — the Flipper Nano/Standard (acrylic blade) or Magfit/Mag-Float acrylic models lead here because they cannot trap grit against the pane the way a coarse magnet can. For stubborn spots, an **acrylic-safe handheld scraper with a plastic blade** is the only blade you should use. Never use steel. The picks below are all acrylic-friendly.

```mermaid
flowchart TD
  A[Cleaning an ACRYLIC tank?] --> B{Type of algae}
  B -->|Light film| C[Soft magnet pad: Mag-Float acrylic or Flipper]
  B -->|Stubborn spots| D[Handheld acrylic scraper, PLASTIC blade only]
  B -->|Coralline on reef| E[Flipper acrylic blade, gentle angle]
  C --> F[NEVER use steel blades on acrylic]
  D --> F
  E --> F
  F --> G[Rinse pad to clear grit before every pass]
```

```mermaid
flowchart TD
A[Top 10 Algae Scrapers] --> B[Acrylic Safe Blades]
A --> C[Magnetic Cleaners]
B --> D[Plastic Scrapers]
B --> E[Floating Scrapers]
C --> F[Strong Magnets]
C --> G[Thin Profile Magnets]
F --> H[Easy Glide]
G --> I[No Scratch Surface]
```

## How We Ranked These Products

- **Quality and performance** — weighted against real buyer priorities
- **Value for money** — street price vs. features you will actually use
- **Reliability and support** — warranty, returns, and owner satisfaction
- **Ease of use** — setup, daily operation, and learning curve
- **Expert and owner reviews** — patterns from trusted review outlets

## 1. Flipper Float / Flipper Standard (Acrylic Blade Model)
@@PRODUCT name="Flipper Float / Flipper Standard (Acrylic Blade Model)"

![Flipper Float aquarium cleaner](https://flippercleaner.com/cdn/shop/files/FlipperStandardFloatHero_1024x1024.jpg?v=1697860459)

@@PRODUCT name="Flipper Float / Flipper Standard (Acrylic Blade Model)" img="https://flippercleaner.com/cdn/shop/products/standard_blade_acrylic_1024x1024.jpg?v=1470244846" site="https://flippercleaner.com/collections/flipper-cleaner-float-magnetic-aquarium-cleaner-nano-standard-max"

**🏆 BEST OVERALL.** The **Flipper** dual-sided magnet cleaner has a soft scrubbing pad on one face and a blade scraper on the other, and you flip between them from outside the glass without getting your hands wet. Crucially, Flipper sells an **acrylic-safe ABS plastic blade** so you get scraping power without scratching. The buoyant design floats if separated, and at **$25–$45** it is the most versatile acrylic-friendly cleaner available.

## 2. Mag-Float Acrylic Model
@@PRODUCT name="Mag-Float Acrylic Model"

![Mag-Float aquarium cleaner](https://gtaquarium.com/wp-content/uploads/2025/03/790950003502-Mag-Float-Large-Glass-Aquarium-Cleaner-1-1024x1024.jpg)

@@PRODUCT name="Mag-Float Acrylic Model" img="https://stlmarinesolutions.com/cdn/shop/products/magfloatacrylic.jpg?v=1650481712" site="https://stlmarinesolutions.com/products/mag-float-360-large-acrylic-aquarium-cleaner-mag-float"

The **Mag-Float** is the long-standing favorite, and its **acrylic-specific version** uses a softer, felt-backed cleaning surface designed to glide on acrylic without grinding particles into it. It floats if it comes apart, so you won't fish it out of the substrate. Sized for different pane thicknesses, it runs **$15–$40**, a dependable no-frills choice for routine film removal.

## 3. Flipper Nano (Acrylic)
@@PRODUCT name="Flipper Nano (Acrylic)"

![Flipper Nano aquarium cleaner](https://aquamaniaaquariumstore.com/cdn/shop/files/Nano_Flipper_FLOAT_-_Magnetic_Aquarium_Algae_Cleaner1.png?v=1734116442)%20Top%2010%20Aquarium%20Algae%20Scrapers%20and%20Magnets%20for%20Acrylic%2C%20realistic%20magazine%20style%2C%20warm%20light%2C%20no%20text%2C%20no%20watermark?width=1200&height=675&nologo=true&model=flux&seed=39007)

@@PRODUCT name="Flipper Nano (Acrylic)" img="https://aqua-parts-online.com/cdn/shop/products/b8e50e_8be6c3f6120144c7951953f81e569b1e_mv2_40027fcc-2eb7-44f7-831a-aa58b890d96f.png?v=1697572654&width=1946" site="https://aqua-parts-online.com/products/flipper-nano-platinum-aquarium-hand-scraper-for-glass-and-acrylic-tanks"

For nano and rimless acrylic tanks, the **Flipper Nano** brings the same flip-to-scrape design in a compact body sized for thinner panes. It is ideal for desktop reefs and small planted acrylics where a full-size magnet is too strong or bulky. With the acrylic blade fitted, it cleans gently and effectively for **$20–$35**.

## 4. Continuum AquaBlade Acrylic Handheld Scraper
@@PRODUCT name="Continuum AquaBlade Acrylic Handheld Scraper" img="https://www.aquariumspecialty.com/media/catalog/product/cache/db5cfb6f4a26c3570f7de1dd2ed843a8/c/o/continuum-handle_2.jpg" site="https://www.aquariumspecialty.com/continuum-aquablade-p-acrylic-safe-algae-scraper-with-plastic-blade.html"

**💎 BEST VALUE.** The **Continuum AquaBlade-P** and similar handheld acrylic scrapers use replaceable **plastic blades on a long handle**, letting you reach the bottom of a deep tank and tackle stubborn spots a magnet can't shift. Plastic blades are the only safe choice for scraping acrylic. At **$10–$20** with spare blades, it is an inexpensive must-have companion to any magnet cleaner.

## 5. Kent Marine Pro-Scraper (Acrylic Blade)
@@PRODUCT name="Kent Marine Pro-Scraper (Acrylic Blade)" img="https://stlmarinesolutions.com/cdn/shop/products/kentreplcblade.jpg?v=1650484109" site="https://stlmarinesolutions.com/products/kent-marine-proscraper-proscraper-ii-replacement-plastic-blades-10-pack"

The **Kent Marine Pro-Scraper** is a telescoping handheld scraper that accepts both stainless and **acrylic-safe plastic blades** — for acrylic you fit only the plastic blade. The extending handle reaches deep tanks and stubborn corners. Priced **$15–$30**, it is a sturdy reach tool for serious algae removal.

## 6. Two Little Fishies Nano MagnaSweep (Acrylic)
@@PRODUCT name="Two Little Fishies Nano MagnaSweep (Acrylic)" img="https://aquariumzen.ca/cdn/shop/files/NanoMag2.jpg?v=1731701069" site="https://aquariumzen.ca/products/two-little-fishies-nano-mag"

**Two Little Fishies** makes the **MagnaSweep** magnetic cleaners with models rated for acrylic, using soft cleaning faces that won't mar the surface. The reef-focused brand engineers them for strong hold on thicker panes without abrasiveness. Expect **$20–$40** depending on size, a quality pick for reef acrylics.

## 7. Algae Free / Hammerhead Magnet Cleaner (Acrylic)
@@PRODUCT name="Algae Free / Hammerhead Magnet Cleaner (Acrylic)" img="https://cdn11.bigcommerce.com/s-zrfsy1cc33/images/stencil/1280x1280/products/5846/46655/hammerhead-float-plus-3__60507.1708989871.jpg?c=1" site="https://aquacave.com/algaefree-hammerhead-float-plus-magnet-algae-cleaner.html"

For large and thick-walled acrylic tanks, **Algae Free's** Hammerhead and similar heavy-duty magnets deliver the holding strength to clean panes 1 inch thick or more, with soft pads specified for acrylic. These are pro-grade tools for big display tanks, priced **$50–$150+**. Match the magnet strength to your exact pane thickness.

## 8. Mag-Float 350A (Large Acrylic)
@@PRODUCT name="Mag-Float 350A (Large Acrylic)" img="https://www.instacart.com/image-server/1200x1200/www.instacart.com/assets/domains/product-image/file/large_bb2a9893-5d99-434d-b6bf-c57caa9a84fe.jpeg" site="https://www.instacart.com/products/70540125-gulfstream-tropical-acrylic-mag-float-large-1-each"

The **Mag-Float 350A** is the brand's large acrylic-rated model for sizable tanks, carrying enough strength for thick panes while keeping the gentle felt cleaning surface. It floats if separated and covers a lot of glass per pass. Pricing runs **$30–$55**, a workhorse for bigger acrylic builds.

## 9. Bristle / Soft Pad Hand Scrubber for Acrylic
@@PRODUCT name="Bristle / Soft Pad Hand Scrubber for Acrylic" img="https://media.bunnings.com.au/api/public/content/2e9238b78bf248d28c3184b2cfe5e265?v=59394741&t=w700dpr1" site="https://www.bunnings.com.au/ryobi-178mm-soft-bristle-power-scrubber-brush_p0670727"

A simple **acrylic-safe hand pad or soft scrubber** (felt or fine non-scratch pad) is the cheapest way to wipe a film off an acrylic pane during a water change, when your hand is already in the tank. Avoid any green or coarse kitchen scrub pad, which will scratch. These cost **$3–$8** and are a useful backup to a magnet.

## 10. Tunze Care Magnet (Acrylic-Compatible)
@@PRODUCT name="Tunze Care Magnet (Acrylic-Compatible)" img="https://down-tw.img.susercontent.com/file/be198d99c79e07523b614bf97a97fce7" site="https://shopee.tw/%E5%BE%B7%E5%9C%8BTUNZE-CARE-MAGNET-LONG-0220.015%E7%A3%81%E5%88%B7%E3%80%81%E5%88%AE%E5%88%80-i.20167985.816931396"

**Tunze's** Care Magnet line includes models compatible with acrylic, built to the brand's German engineering standards with strong, controlled magnetic hold and soft cleaning faces. They are a premium pick for keepers who want precision and longevity. Prices typically fall **$40–$90** by size.

## How to Clean Acrylic Without Scratching

The cardinal rule of acrylic is **no steel, no grit, no coarse pads — ever**. Use only **plastic blades and soft felt or acrylic-rated magnet faces**. Before each pass, **rinse the magnet's cleaning pad** to flush out any sand or coralline fragments that could become a scratching grit. Pull the magnet **away from the substrate** so it doesn't pick up sand, and for hard coralline spots use light pressure with the acrylic blade at a shallow angle. A scratch in acrylic is permanent, so patience beats force every time.

## Maintenance Tips to Extend the Life of Your Acrylic Cleaner

Even the best algae scraper will degrade faster if you don’t rinse and store it properly. Acrylic tanks are unforgiving — a single grain of sand trapped in a pad can leave a permanent swirl. Here’s how to keep your scraper or magnet performing like new for years:

- **Rinse the pad or blade after every use.** Run it under tap water and gently rub the surface with your fingers to dislodge any grit. For magnetic cleaners, pop the inner magnet out and rinse both halves. Let them air-dry completely before storing to prevent mold or mineral buildup.
- **Inspect the cleaning surface before each pass.** Run your fingertip across the pad or blade edge. If you feel any hard particles (crushed snail shell, stray gravel, dried algae crust), pick them off or replace the pad. A single scratch is permanent on acrylic.
- **Store magnets with the cleaning pad facing up or on a soft towel.** Placing them face-down on a countertop can embed dust into the pad. Some users keep a small microfiber cloth under their magnet when not in use.
- **Replace pads every 3–6 months** depending on usage frequency. Felt pads (common on Mag-Float and Flipper) eventually wear thin and lose their cushion, increasing scratch risk. Many brands sell replacement pads for $5–$10.
- **For handheld scrapers, sharpen the plastic blade edge occasionally.** A dull blade requires more pressure, which can dig into acrylic. Run the edge gently along a fine-grit sanding block (1000+ grit) at a 45-degree angle for two passes — this restores a clean cutting edge without removing too much material.

A well-maintained cleaner not only protects your tank but also saves you money on replacements. Most acrylic-safe cleaners last 2–4 years with proper care, compared to 6–12 months if neglected.

## How to Match a Cleaner to Your Tank Size and Algae Type

Not all acrylic scrapers work well on every tank. The wrong size or style can make cleaning frustrating or even damage the acrylic. Here’s a simple guide based on tank dimensions and common algae challenges:

| Tank Size (gallons) | Recommended Cleaner Type | Why It Works |
|---------------------|--------------------------|--------------|
| 5–20 (nano) | Small magnetic cleaner (e.g., Mag-Float 100, Flipper Nano) | Thin acrylic (3–6mm) requires low magnetic force to avoid pinching; small pad reaches tight corners |
| 20–55 | Medium magnet or handheld scraper (e.g., Flipper Standard, Mag-Float 200) | Good balance of cleaning area and magnetic strength for 6–10mm acrylic; handheld for spot-cleaning |
| 55–120 | Large magnet with strong pull (e.g., Mag-Float 400, Flipper Max) | Thicker acrylic (10–16mm) needs strong magnets to stay attached; wider pad covers more surface |
| 120+ | Extra-large magnet or dual-blade scraper (e.g., Flipper Max, Tunze Care Magnet 030) | Heavy-duty cleaning for 16–25mm acrylic; some models have adjustable magnetic strength |

For **algae type**, match your tool to the growth:
- **Green dust / film algae** — Any soft magnet pad works; no blade needed.
- **Green spot algae (GSA)** — Plastic blade scraper (handheld or magnet-mounted) is best. GSA adheres tightly and requires a scraping edge, not just a pad.
- **Hair algae / string algae** — A soft pad can pull it loose, but a plastic blade scraper with a gentle angle lifts it more cleanly without tearing strands that float away.
- **Coralline algae (saltwater)** — This hard, crusty algae demands a sharp plastic blade. Use the Flipper acrylic blade or a dedicated acrylic scraper with a replaceable plastic edge. Apply light pressure and work slowly — coralline can chip if scraped aggressively.

If you have a mixed reef tank with both film algae and coralline, a magnet cleaner with a removable scraper attachment (like the Flipper or Tunze models) gives you two tools in one without switching devices.

## Common Mistakes That Scratch Acrylic (and How to Avoid Them)

Even experienced aquarists make errors that leave permanent marks. Here are the most frequent scratch-causing habits and simple fixes:

**Mistake 1: Using a glass-rated scraper on acrylic.** Glass scrapers often come with steel blades or coarse abrasive pads. Even if the packaging says “multi-surface,” check the blade material. Steel is never safe for acrylic. Fix: Only buy cleaners explicitly labeled “acrylic-safe” or “plastic blade only.”

**Mistake 2: Cleaning dry acrylic.** Algae scrapers work best on wet surfaces. Dry acrylic is more brittle and scratches easier. Fix: Always wet the area with tank water (or a spray bottle of RO/DI water) before scraping. A thin film of water lubricates the blade and reduces friction.

**Mistake 3: Pressing too hard with a magnetic cleaner.** Strong magnets can pinch the acrylic if you apply force. This creates a white stress mark or a hairline crack over time. Fix: Glide the magnet gently — let the pad do the work. If algae isn’t coming off, switch to a handheld scraper instead of pushing harder.

**Mistake 4: Not cleaning the tank rim before scraping.** Dust, dried salt creep, and tiny debris often collect along the top edge. When you run a magnet down from the rim, that debris gets trapped under the pad. Fix: Wipe the rim with a damp cloth before starting. Rinse the magnet pad after the first pass along the top.

**Mistake 5: Using the same pad for months without inspection.** Pads wear down and can develop hard spots or embedded particles. Fix: Check the pad under bright light every few weeks. If it looks matted, discolored, or has any rough patches, replace it immediately.

By avoiding these five pitfalls, you can keep your acrylic tank crystal clear and scratch-free for the long haul — saving you the cost and hassle of polishing or replacing panels.

## Frequently Asked Questions

**Why can't I use a regular metal-blade scraper on acrylic?**
Steel razor blades and coarse pads scratch acrylic permanently. Acrylic is much softer than glass, so you must use plastic blades and soft, non-abrasive cleaning faces specifically rated for acrylic.

**Are magnet cleaners safe for acrylic tanks?**
Yes, provided you use a magnet with an acrylic-rated soft pad (felt or specially designed face), not the coarser pad meant for glass. Always rinse the pad of grit before each use to prevent scratches.

**How do I remove stubborn coralline algae from acrylic?**
Use an acrylic-safe plastic blade at a shallow angle with light, patient pressure. Soften the spot first by letting the magnet's pad work it, and never force a hard blade or steel across the pane.

**What is the biggest scratch risk when cleaning acrylic?**
Trapped grit — a single grain of sand or a coralline chip caught under the magnet or pad will gouge a long scratch. Keep the magnet off the substrate and rinse the pad frequently.

**Do magnet cleaners that float really matter?**
Yes. A floating magnet (like Mag-Float and Flipper designs) returns to the surface if the inner and outer halves separate, so you avoid reaching into the tank or dragging the inner piece across the bottom and scratching it.

**Can I polish out a scratch in acrylic later?**
Light scratches in acrylic can sometimes be buffed out with acrylic polish kits, unlike glass. But deep scratches are difficult to fully remove, so prevention with the right tools is far better than repair.

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## Related on PULSE

- [Top 10 Aquarium Algae Scrapers and Magnets for Acrylic Tanks](/knowledge/aq0778)
- [Top 10 Magnetic Algae Scrapers for Acrylic Aquariums](/knowledge/aq0838)
- [Top 10 Magnetic Algae Scrubbers for Acrylic Aquariums](/knowledge/aq0963)
- [Top 10 Aquarium Magnetic Algae Scrapers for Glass Tanks](/knowledge/aq0916)
- [Top 10 Aquarium Glass Scrapers and Algae Pads](/knowledge/aq0864)
- [Top 10 Aquarium Algae Scrapers and Magnet Cleaners in 2027](/knowledge/aq0719)

## Sources

- Flipper Cleaner — acrylic blade compatibility and product guides (flippercleaner.com)
- Mag-Float — acrylic vs glass model selection (mag-float.com)
- Bulk Reef Supply — acrylic tank cleaning and magnet guides (bulkreefsupply.com)
- Two Little Fishies — MagnaSweep product information (twolittlefishies.com)
- Aquarium Co-Op — algae scraper and tank cleaning articles (aquariumcoop.com)
- Melev's Reef — acrylic care and coralline removal techniques (melevsreef.com)

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## How to Choose

```mermaid
flowchart TD
  A[Set your budget] --> B{Priority?}
  B -->|Best performance| C[Pick #1 Best Overall]
  B -->|Best value| D[Pick #2 Best Value]
  C --> E[Match tank size and maintenance plan]
  D --> E
```

## What to Look For

- **Fit for your tank size** and livestock plans
- **Ease of cleaning** and replacement parts availability
- **Honest owner reviews** over marketing claims

## FAQ

**What is the best overall pick?**
See rank **#1** above — labeled **Best Overall**.

**What is the best budget option?**
Rank **#2** is **Best Value** for shoppers optimizing spend.

**How often should I maintain equipment?**
Follow the manufacturer schedule and test water weekly during the first month.

## Bottom Line

Use rank **#1** as your default **Best Overall** and rank **#2** as **Best Value**, then compare the rest for your specific setup.

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Kory White