Rated 3.9 out of 5 by 21
Rated 2 out of 5 by Amily Streaky and Damaging
I bought the medium size Mag-Float for my 55 gallon aquarium with glass that is somewhere around 7-8 mm thick. The abrasive clean pad on the float feels like the "sharp side" of velcro. I bought my tank used, and it was already scratched up when I bought it, but the M-F seems to be adding more scratches because the magnet is so strong. This worries me a bit.
When I the move float along the glass surface, the M-F only cleans in small streaks and takes several passes to clear away the algae. Even if I spend 10-15 minutes repeatedly swiping back and forth and in circles, the M-F still doesn't do a thorough job of cleaning away even the soft gold slime algae. The bulkiness of the cleaner, even when moving it carefully, has led to some minor leaf damage as it rubs against the edges of my amazon sword plants. The corners of the tank, of course, stay messy because the M-F is not safe to use on the aquarium sealant.
In short, I would not buy this again. I'd prefer to buy another Flipper Algae Magnet instead (what I use on my 10 gallon aquarium is a Flipper Nano Magnet Cleaner--but these are more expensive and not available at Petsmart).
August 26, 2016
Rated 5 out of 5 by Laura251 Quick and easy!
I used this on my 60 gallon tank and it worked beautifully! I get sunlight on my tank for an hour in the morning through a high window in my living room that I can't block, which was causing algae to build up on the glass. This took care of it with minimal effort.
September 11, 2015
Rated 5 out of 5 by beej1254 Amazing
I have a 120 saltwater reef tank that gets a good amount of sunlight everyday which causes algae on the glass. Everyday with my old scrapper and magnet cleaner was a pain and took up so much time just to get the front glass to look good. I 100% wish that I would have purchased a Mag-float long ago. The magnet is incredibly strong and I love that it floats if it detaches. Plus the water side of the Mag-float isn't just a foam pad it's actually got bristles to really scrub the glass. I can't believe how well and quickly this worked for me. Petsmart should sell the bigger versions and sell the Mag-floats with scrapers!
June 6, 2015
Rated 5 out of 5 by Tankcleaner Excellent!
Great product - made our tank like nrand new with minimal effort!
January 22, 2014