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If you have answers, please help by responding to the unanswered posts.
I'm very new to this so please indulge me. I'm trying to create an interesting scenario for my 10 gal tank, and am just brainstorming.
Do fish tanks need a substrate? I'm not even sure that's the right word - I mean the sand or gravel on the bottom.
I know bacterial growth needs to be...
I am currently using Aqueon filters (for my Aqueon pump) which have carbon in them. If I want to make my own filters without carbon, what would be a good material?