alright, here's my dilemma... i have a 120 gallon reef tank thats about 3 months old, my pH, temp, kH, etc. is perfect and all- so nothing wrong with that. but i have 2 percula clownfish that are about an inch and a half big and they like to swim at the very top of the aquarium in the back- by the overflow. At some points, one of my clownfish is missing and is actually INSIDE the overflow! I fish him out with a net difficulty, but today he was in there twice! i dont know if he's scared of my new yellow tang, powder blue tang, or naso tang, but he appears in the overflow anyway. so, the question popped up in my head that should/if i get an anemone, would the clownfish spend all their time in that, and never try to go in the overflow again? i hope i tried to make the most sense in explaining this...