My black clownfish has recently decided to try to host in one of the anemones (instead of the leather coral, hammerhead, or fuzzy mushrooms) but his lady friend
always chases him out of hers (the 2 big ones in the tank)
This morning I caught him 'hosting' in a small, closed up one (It recently split into 3)
I think he was upset I was laughing at him though...