Algae Magnets

A magnetic aquarium cleaner has two enclosed magnets with cleaning pads on the inside. Move the outside magnet, and the wet side magnet follows along, scraping off green film algae from the glass. On most models, like the Mag Float, the magnets float if they get separated, making for easy retrieval. Some aquarium magnets even include scrapers to get rid of hard coralline algae. Replacement pad kits can be purchased for worn pads.

Be sure to buy the right size aquarium magnet. Measure the thickness of your aquarium glass to ensure proper adhesion and strong scrubbing action. Too small, and the magnet won’t attach. Too large, and the magnet won’t move.

If you want to know how to clean algae off acrylic aquarium sides, just be sure to buy an acrylic safe algae magnet with softer pads (and be sure gravel doesn’t get trapped in between the pad and acrylic).
60 Results
Mag-Float 125 Magnet Cleaner (Glass) - Medium (up to 125gal)
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Mag-Float 125 Magnet Cleaner (Glass) - Medium (up to 125gal)

Flipper Standard Stainless Steel Replacement Blade

Flipper Standard Stainless Steel Replacement Blade

Mag-Float 30 Magnet Cleaner (Glass) - Small (up to 30gal)
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Mag-Float 30 Magnet Cleaner (Glass) - Small (up to 30gal)

Algae Free Hammerhead Float Plus Algae Magnet
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Algae Free Hammerhead Float Plus Algae Magnet

Mag-Float 350 Magnet Cleaner (Glass) - Large (up to 350gal)
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Mag-Float 350 Magnet Cleaner (Glass) - Large (up to 350gal)

Two Little Fishies NanoMag Magnetic Glass Cleaning Device
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Two Little Fishies NanoMag Magnetic Glass Cleaning Device

Flipper Standard Aquarium Algae Magnets Replacement Pads

Flipper Standard Aquarium Algae Magnets Replacement Pads

Algae Free Piranha Float Plus Algae Magnet
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Algae Free Piranha Float Plus Algae Magnet

Algae Free Glass Replacement Pad for Piranha/Hammerhead Plus Algae Magnet
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Algae Free Glass Replacement Pad for Piranha/Hammerhead Plus Algae Magnet

Algae Free Glass Replacement Scraper (2 pack)
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Algae Free Glass Replacement Scraper (2 pack)

Flipper Nano FLOAT Algae Scraper
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Flipper Nano FLOAT Algae Scraper

Algae Free Tiger Shark Float Plus Algae Magnet
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Algae Free Tiger Shark Float Plus Algae Magnet

Tunze Care Magnet Algae Cleaner - Nano
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Tunze Care Magnet Algae Cleaner - Nano

Innovative Marine AUQA Gadget MicroMag Glass Cleaner
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Innovative Marine AUQA Gadget MicroMag Glass Cleaner

Tunze Replacement Steel Blades for Care Magnet Algae Cleaner Long - 3pk
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Tunze Replacement Steel Blades for Care Magnet Algae Cleaner Long - 3pk

Flipper MAX Aquarium Algae Magnets Replacement Pads

Flipper MAX Aquarium Algae Magnets Replacement Pads

Tunze Replacement 86mm Blade Set for Care Magnet Algae Cleaner Long
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Tunze Replacement 86mm Blade Set for Care Magnet Algae Cleaner Long

Flipper Max Aquarium Algae Magnet Cleaner ABS Replacement Blades - 3 pack

Flipper Max Aquarium Algae Magnet Cleaner ABS Replacement Blades - 3 pack

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