The best aquarium algae cleaners for 2026
A film of algae on the front glass is normal — clearing it in seconds is what a good tool buys you. A magnet cleaner wipes the pane without wet sleeves, and a blade scraper handles the stubborn spots. These are the ones we'd keep by the tank.
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Frequently asked questions
Are magnet aquarium cleaners any good?
Very — a magnet cleaner lets you wipe the inside glass from outside the tank, so no rolled-up sleeves and no disturbing fish. The key is matching the magnet's strength to your glass thickness: too weak and it won't hold, too strong and it's a wrestling match. Models like the Mag-Float are rated by glass thickness for this reason.
How do I avoid scratching the glass with a cleaner?
Grit trapped under the pad is the enemy. Keep the cleaner away from the substrate line, rinse it if it touches the gravel, and lift it clear rather than dragging up from the sand. On acrylic tanks use only acrylic-safe pads (never a steel blade), as acrylic scratches easily.
Magnet cleaner or scraper — which do I need?
Both, ideally. A magnet cleaner handles routine weekly film fast; a stiff blade scraper (like the Flipper's steel blade, for glass only) tackles hardened spot algae and coralline the magnet skips. Many 2-in-1 tools combine a scrub pad and a flip-out blade.
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