yeah I know. I was weary, and had my eyes glued on the tank for hours after I introduced them. (there are 2 horses). But Claude the maroono seems to love them. He has been alone for a while and likes the company I think. I've had him about a year, maybe more, and he has never shown aggression towards other fish in the tank. Tonight one of the seahorses went to the open brain (which Claude hosts) and he swam right up but didn't mind or try to chase the seahorse out; and the seahorse stayed there for a good chunk of time. The clown is definitely an agressive eater though, but I've got a decent pod population built up for the horses, and lots of rockwork and places to hide/chaeto in the tank for them to hide in. I've got about 27-30 Lbs LR in there with caves, etc. I also plan to start a new (bigger) tank this year sometime and can move things around. But my eye is on everyone.