I've always wanted a saltwater tank but I've never had the cash or knowledge to do so. I was really interested, though, to set-up a 30g as somewhat of a show tank for clownfish. I saw a GREAT tank and it was almost entirely black with white coral - the contrast looked great. Now, I know enough to maintain it and set it for the fish - but I have no idea about the specifics of what I need and how much it would cost. Basically, how much would it cost and what exactly would I need? It will probably be just clownfish and it won't likely have any live coral.