
I use it in a 75 gallon tank, actually I use 3. Another manufacturer's one with more suction. They are very large and may be too big for small tanks. For such large sizes, there are only 4 small suction cups. One from another manufacturer 6. I had one of those nets with babies (fry) in it that came loose. Luckily I had floating grass and didn't lose it all.

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