Tony Posted November 2, 2020 Share Posted November 2, 2020 Hello, I am planning to buy a 120 gallon fish tank soon. What size sponge filter should I get for this tank. I saw the ones in the store for 40 gal. +. Will this size work? Thank you Link to comment Share on other sites More sharing options...
Paul Posted November 2, 2020 Share Posted November 2, 2020 You need to use multiple sponges to cover that size tank. I'm going to say at least 4 will do it. Link to comment Share on other sites More sharing options...
Tony Posted November 2, 2020 Author Share Posted November 2, 2020 Thank you! 1 Link to comment Share on other sites More sharing options...
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