I purchased a 2" maroon clown and a RBTA a week ago for my 75g mixed reef tank. The maroon took right to the RBTA. I wanted another clown, so I purchased a 1.5" maroon clown and added him yesterday. LFS said they would most likely pair up since I was adding a smaller one. Since I've added the smaller one, the larger one won't let him near the anemone (as I suspected). He isn't extremely aggressive, just chases him away with a few nips of the tail, then ignores him. Should I return the smaller one today or wait it out?