What does it mean when a discus flutters all his fins? My 6" Blue diamond flutters his fins every so often. It almost seems like hes twitching. None of the other fish are acting weird or spazing out at all. I have noticed another fish do it but it seemed like more of a territorial thing because he would be near another fish at the time but the blue diamond does it when hes by himself, or at least not while interacting with another discus.
What is fin fluttering?
What is fin fluttering?