the clown is full grown i guess - about 3 inches or so... the only other fish i got with him were a yellow watchman and 2 engineer gobies... i got rid of the engineers right away (traded for the baby false perc) and the watchman is so shy he's rarely out but when he is the clown doesn't bother him at all. there is also a skunk cleaner that the clown picks at a bit but not too much. i did get a 6-line wrasse yesterday and the clown has spent all his time stalking it. luckily the wrasse has no interest in hanging out with the clown and knows his way in and out of the rock so well that the clown can't catch him - tho he tries!!! i think the clown just doesn't like change, even tho the tank was totally rearranged when i set it back up he still rules the roost! the baby clown wanted so much to be his friend, it was working so well for the first few days then the big clown just went nuts and killed him... i hope the angel will be aggressive enough to stand up for himself cause i ordered him today...