laferme Posted March 2, 2021 Share Posted March 2, 2021 (edited) I have a 30 gal tank ,gravel filter ,with air returns on each end of tank,,,,,also bio air sponge in center of tank,,,,,,,got a great deal on a 4x Fluval canister,so I went with it (large for tank).My ? is do I have too much water flow with for size of tank? Hope all this makes since.Thankyou Dave Edited March 2, 2021 by laferme Link to comment Share on other sites More sharing options...
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