I got the small and it worked okay on my 95 gal. but i needed to up size (that is on me for not reading the size recomendations). The larger size still falls short with some of the more difficult algae but I would like to try the blade attachment to see if that helps before I completely give up on it.
These magnets work well for cleaning algae and diatom buildup off of glass. If there is a large problem, you might be better off using a softer sponge and wiping it manually (Aq Co-op has a really great algae scrubber for this). However, for small touch ups it is perfect.
I would recommend this especially for larger tanks with hard to reach areas. It scrubs the glass without disturbing the inhabitants as much.
A very helpful little tool indeed. Absolutely love it, has made maintenance so much easier. Will be getting more for sure.
It's a great little gem, it's working great so far, no visible scratches ....so fingers crossed
Loving this! It’s great for most of my cleaning needs It does as good of a job as my stick scrubbers without any splashing. Great for quick touchups.