yeah I gotta say you should go for kribensis. they arent all too aggressive, although now that mine have a batch of babies, they are a bit temperamental, they are very interesting for behavior. my only aggression casualtys from them were angelfish that tried to eat baies and were too slow to escape the attack.
cool
uh i saw this one fish in a magazine *wrecks room looking threw old mags*
its called Thorichthbys aureus any one knwo any thing bout that fish it looks awsome its a relative of the fire mouth but dosnt haver the red instead it has blue spekcs all over