my personal fav for hexs is a mound of stones against 3 of the corners to give it the feel that you can only see half the mound and then throw in a bunch of tanganyikan rock dwellers. It'll be like a coral reef, without the coral.... so i guess just a reef. Get some really colorful ones like j transcriptus and your set. maybe some shell dwellers on the bottom and like a few open water fish to fill the empty space above, but the main attraction will be all the cichlids hiding in the holes, popping their heads out of their caves and breeding like crazy. =) sorry, i'm hoping for a hex tank someday so I can do this myself and I like to ramble on and on if you haven't noticed =p