I just added an Ocellaris to my 130 reef tank, he was added at the same time as a Kole Tang... The tang is doing great, but the clown stays at the top of the tank and only ventures halfway down during feeding time. Any clue what's going on? There is only on other fish in the tank, a small blennie, the rest of the inhabitants are snails, hermits and serpant stars.....oh and the mantis that I can't catch, and kinda like now... Can anyone give me any advice on the Ocellaris?