you should drill a hole in the bottom, run an airline through it, silicone it in, and put an airstong on it, then burry it all with gravel... give you a goo biological filter without hardly any maintanence
yea thats what i mean bottom/side. and i was going to advise a sponge filter but youd occasionally have to take that out to clean it, and you were saying low maintanence. a air tube under ur gravel would need no maintanence