I've really been considering converting my tank from fresh to salt. I've got a bunch of books out from the library on saltwater tanks and am doing a ton of research before doing anything. Some of the fish I like are Butterfly fish, all sorts of Tangs, Triggerfish, Lionfish, Clownfish, Seahorses and others. Would any of these guys be OK with the others? Is there anything to avoid as far as compatibility? I currently have a basic fluorescent hood and 2 Aquaclear 500 (110) filters. I'm still doing research but was wondering about the tank mates I posted above going into a 55 gallon.