Ha, "by contrast" that made me laugh but I don't know if I should be laughing. Is that a playful thing or is it aggression? I just have the one clown, a royal gramma and a blue neon goby and they are all cool with each other. Sometimes the goby does minor things to irk them like try to maybe pick off something on them. They haven't figured out he could be helpful and just think he's a little punk.By contrast, my storm body slams the other.