Originally Posted by
Happyfeet
http:///forum/post/3172920
I've been wondering!!! I got two True Percula clowns and the smaller of the two "Gimpy" every so often does a full body spaz. I thought he was just a little bit special, but now it makes more sense!
Yes, sometimes it even looks like they are having a seizure.
Anytime you have a clown pair, one of them (usually the larger) will take on the dominant female role, and she will wear the pants in the family. The other (usually the smaller) will frequently exhibit this jerking, spaz behavior when the female comes around. Unlike many other fish who will run off to a corner and hide, clowns see this as a gesture of submission most often, and seems to be enough so that the dominant clown does not attack. If there is an anemone in the tank, you will see this behavior more often when the female cruises by and sees the other clown in/near the anemone, but they do learn to share.