BettaBabe94 Posted April 26, 2022 Share Posted April 26, 2022 If my one sponge filter seems to be overwhelmed, do I have to get another one or can I just replace the one I have with a bigger one? Background: I have a 20 gallon tank with a medium aquarium co-op sponge filter. While trying to solve the mystery of my cloudy greenish tank, I decided to just see if cleaning the sponge filter would help. Well that thing was DIRTY! For reference the last time I cleaned it was 2 weeks ago. 1 Link to comment Share on other sites More sharing options...
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