I have had the heni black and white butterfly fish for a long time now and recently i found a mated pair of ocellaris clownfish and introduced them into the tank. my plan is to get them an anemone here in the next month or so but right now they are just swimming around but i am concerned now because my heni's banner at the end has been chewed on/off, about a 1/4 inch piece is gone and i saw the one clown nipping at it while the heni was eating algae from the clip. the heni doesn't seem to care that the clown is nipping at it. Is this a bad sign? are the clowns going to cause the heni stress? or is this a one time thing? i think it is rather strange because the heni is extremely fast and like 4 times the size of the clowns but he just sat there and let it happen. Any advice?