BettaBabe94 Posted January 25, 2022 Share Posted January 25, 2022 (edited) This is my first time with a sponge filter. I have a 5 gallon (tall) tank. I bought the nano sponge filter from aquarium co-op, the ziss air stone, and the nano air pump. I have the air stone tightened all the way. I think I saw that it was safe for a betta. It seems like a lot to me, but maybe he just needs to get used to it? Does anyone else use the nano sponge filter in a betta tank? Edited January 25, 2022 by SinfulBetta94 Link to comment Share on other sites More sharing options...
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