Top 10 Aquarium Algae Scrapers and Magnet Cleaners in 2027
Curated by Kory White · Fractional CRO, CRO Syndicate
Direct Answer
The best aquarium magnet cleaner for most keepers in 2027 is the Flipper Float Cleaner, because its flip-to-scrape design lets you switch between a scraper blade and a pad without reaching into the tank, and it floats if separated. For thick acrylic or large glass tanks, the Mag-Float series offers the most reliable hold across thicknesses, and for a budget handheld scraper, the Kent Marine Pro-Scraper is the best value.
An algae magnet (or magnet cleaner) is two magnetized pads, one inside the tank and one outside, that you slide together to wipe algae off the glass without getting your hands wet; an algae scraper is a handheld blade or pad on a handle for tougher buildup and tank corners. The right tool depends on glass versus acrylic (acrylic scratches easily), glass thickness, and whether you fight soft film algae or hard coralline.
This guide ranks ten real, widely sold algae scrapers and magnet cleaners by cleaning power, glass safety, and value.
How We Ranked These Cleaners
We weighted cleaning power (soft film versus hard coralline), scratch safety (acrylic-safe options), magnet strength matched to glass thickness, ease of use (does it float? Can you change blades in-tank?), and value. The biggest risk with any magnet cleaner is trapping a grain of sand between the pad and glass, which scratches; the best designs minimize that.
We only included products still sold in 2027 from established brands: Flipper (CPR), Mag-Float, Kent Marine, Two Little Fishies, Continuum (AquaBlade), API, Tunze, hygger, Coralife, and Easly/Magfit.
1. Flipper Float Cleaner 🏆 BEST OVERALL
The Flipper Float Cleaner by CPR is the most popular two-in-one magnet cleaner in the reef hobby. Its hinged design lets you "flip" between a scraping blade and a cleaning pad with a wrist twist, so you never reach into the tank to remove coralline. It floats if the magnets separate, comes in Nano, Standard, and Max sizes for different glass thicknesses, and accepts replaceable stainless blades for hard coralline.
For most glass tanks it is the best all-around choice.
Best for: glass reef and freshwater tanks needing both pad and blade. Watch: use the plastic blade, not stainless, on acrylic; match the size to your glass thickness.
2. Mag-Float Floating Magnetic Cleaner 💎 BEST VALUE
The Mag-Float is the long-standing value benchmark: a simple, reliable floating magnet cleaner sold in sizes from Mini to 500+ for glass up to very thick, plus dedicated acrylic-safe versions. It floats when separated so the inner pad does not sink into the substrate, and replacement pads are cheap.
It does not flip blades, but for everyday film algae it is dependable and inexpensive.
Best for: routine film-algae cleaning on glass or acrylic (use the correct version). Watch: no in-tank blade swap; a separate scraper handles hard coralline.
3. Continuum AquaBlade Algae Scraper
The Continuum AquaBlade is a handled scraper with interchangeable stainless and plastic blades and extension handles for deep tanks. It is the tool reefers reach for when coralline has cemented onto the glass and a magnet pad cannot shift it. The stainless blade cuts hard buildup; the plastic blade is the acrylic-safe option.
A precise, well-built handheld scraper.
Best for: removing hard coralline from glass; reaching deep tanks. Watch: stainless blade will scratch acrylic; switch to plastic for acrylic.
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4. Kent Marine Pro-Scraper
Kent Marine makes the Pro-Scraper, an affordable telescoping handheld scraper with replaceable stainless and plastic blades. The long handle keeps your arm dry on deeper tanks. It is a no-nonsense value pick for scraping the corners and bottom edges that magnets miss.
Best for: budget handheld scraping with reach. Watch: stainless blade for glass only; use plastic on acrylic.
5. Two Little Fishies Nanomag / MagFox
Two Little Fishies makes the thin, flexible Nanomag (for nano and thin-glass tanks) and the stronger MagFox, magnet cleaners praised for following slightly curved glass and getting into tight all-in-one chambers. The Nanomag's slim profile is ideal for the rear sections of nano tanks. A favorite for small and aquascaped tanks.
Best for: nano tanks and curved or tight glass. Watch: thin magnets suit thinner glass; not for very thick panels.
6. Tunze Care Magnet
Tunze, the German maker of the Osmolator ATO, builds the Care Magnet, a strong, well-engineered magnet cleaner with a foam float and a scraper edge, sized for various glass thicknesses including thick panels. Tunze's build quality and strong hold make it a premium choice for larger glass aquariums.
Best for: larger thick-glass tanks wanting a premium magnet. Watch: strong magnets demand care near the rim to avoid pinched fingers and trapped grit.
7. Hygger Magnetic Aquarium Glass Cleaner
The hygger Magnetic Cleaner is a budget two-piece magnet with a scraper blade and a non-scratch pad, often including a handle and floating design. It is a solid value for smaller glass tanks where the Flipper or Tunze price is hard to justify. A practical everyday cleaner.
Best for: value cleaning of small to mid glass tanks. Watch: match strength to glass; rinse pads to remove trapped sand.
8. API Algae Scraper (Algae Pad / Scraper)
API, known for test kits, sells simple algae pads and handled scrapers widely stocked at chain stores. Non-abrasive pads are safe for glass and acrylic; coarser pads tackle stubborn glass algae. They are inexpensive and easy to replace. A handy backup tool for spot scrubbing.
Best for: cheap, easy-to-find pads and handheld scrubbing. Watch: use only the soft, non-abrasive pad on acrylic.
9. Coralife Aquarium Algae Cleaning Magnet
Coralife, maker of the BioCube, offers algae cleaning magnets sized for its cubes and other tanks, with a floating design and a non-scratch pad. They pair naturally with Coralife all-in-one tanks and are a reasonable, accessible option for routine cleaning.
Best for: Coralife BioCube owners and routine film cleaning. Watch: general-purpose strength; not aimed at very thick glass.
10. Magfit / Easly Magnetic Cleaner
The Magfit (and similar Easly) magnetic cleaners are slim, strong neodymium two-piece cleaners with a low profile that hugs the glass, popular among aquascapers for an unobtrusive look and good hold. The slim design reduces the gap where sand can lodge. A clean, modern pick for display tanks.
Best for: aquascapers wanting a slim, strong magnet. Watch: strong neodymium magnets snap together hard; keep fingers clear.
How to Clean Algae Without Scratching
The cardinal rule, especially on acrylic, is to never trap sand between the pad and the glass: clean from the top down so any dislodged grit falls away, and lift the magnet away from the tank near the substrate rather than dragging it through sand. On acrylic tanks use only plastic blades and non-abrasive pads; a stainless blade or a coarse pad will permanently scratch acrylic.
For hard coralline algae on glass, a stainless blade on a Flipper or AquaBlade does in seconds what a pad cannot. Match the magnet strength to your glass thickness, and rinse pads after each use so embedded grit does not scratch next time. Reducing algae at the source (light duration, nutrients) means less scraping overall.
FAQ
Will an algae magnet scratch my glass? It can if a grain of sand gets trapped between the pad and the glass. Clean from the top down, keep the magnet away from the substrate, and rinse the pad before use. On glass this risk is low with care; on acrylic you must use plastic blades and soft pads only.
Can I use a magnet cleaner on an acrylic tank? Only an acrylic-safe version with a plastic blade and a non-abrasive pad. Stainless blades and coarse pads will scratch acrylic permanently. Mag-Float and several others sell dedicated acrylic models.
How do I remove hard coralline algae from the glass? Use a stainless steel blade, either on a flip-style magnet like the Flipper or a handheld scraper like the AquaBlade or Kent Pro-Scraper. Pads alone will not shift cemented coralline on glass.
What size magnet cleaner do I need? Match it to your glass thickness. Brands publish a thickness range (for example Nano, Standard, Max). A magnet too weak for thick glass will not hold; one too strong for thin glass risks pinched fingers and trapped grit.
How often should I clean the glass? As needed for visibility, often weekly. If algae returns very fast, address the cause: reduce lighting duration, lower nutrients with water changes, and check phosphate and nitrate rather than just scraping more often.
Does a magnet cleaner reach the corners? Not fully. Magnets clean the flat panels; corners and the bottom edge usually need a handheld scraper. Many keepers use a magnet for daily wipes and a scraper occasionally for the spots it misses.
Sources
- Flipper / CPR Aquatic - Float Cleaner
- Mag-Float - Floating Aquarium Cleaners
- Two Little Fishies - Nanomag and MagFox
- Continuum Aquatics - AquaBlade
- Kent Marine - Pro-Scraper
- Tunze - Care Magnet
- API Fishcare - Algae Cleaning Tools
Bottom Line
For most glass-tank keepers in 2027, the Flipper Float Cleaner is the best magnet cleaner because its flip-to-scrape design handles both film and coralline without wet hands, while the Mag-Float is the unbeatable value for routine wiping. Use a stainless blade on glass for hard coralline, switch to plastic blades and soft pads on acrylic, and always clean top-down to keep trapped sand from scratching your tank.