Well, the display tank at my lrs is nice, but there is one oddity that I finally got a pic of. They've got an anemone(forget the species) hosting a clown on the bottom of the tank. They've also got a nice sized open brain on the bottom of the tank. Well, once in a while, the brain, I guess, wants to feel cozy and will move itself over and slightly under the anemone's tentacles, without human help. Then after a while it'll move back to where it was sitting before, which you can kinda see in the pic. They're both usually evenly spaced in the open spot on the bottom there. The best part: Neither will seem to ever have stings on them. Sorry for the bad pic, it was with my phone. Gives the idea though, and you can even tell it's close to feeding time since the brain has feeders out 
Never heard of that. Just another saltwater mystery i guess.
