Originally Posted by uberlink
I think you could do two clowns in a 25 gallon without any problems. I have two clowns and a blenny in my 28 gallon, with a BTA and a lot of soft corals. No problems. I'd say I am at the absolute limit, though, and I also do a 10% water change every week. I also have an excellent skimmer (which you'll need) and a small refugium where I grow seaweed for nutrient export.
I agree.
Depending on filtration, you could have 2 clowns, a BTA, and another small fish in there.
When I had my 20 gallon up, I had a Clownfish, Six-Line Wrasse, Firefish, and a Clown Goby.
Never had any problems.