Nope, they get along fine.. I had one clown first and added the second clown at the same time as the gramma.. The clowns were to busy pairing up to bother the gramma and the royal gramma had been hiding for the first week or so before he even ventured out. Now they get along perfectly fine. The last picture is a Scooter Blenny although it isn't really a blenny, its a dragonet.