Hey all I have a yellow tang that I have had for over a year and now all of a sudden the fins seem to be shredded. I have started feeding it more Algae thinking it may be needing more algae. It does not seem to be acting funny but does do some rapid swimming around the tank. I have not added anything new to the tank and all parameters are WNL. I do regular water changes every 2 weeks. Do I need to pull it out and put in quarantine? The rest of the fish in the tank look normal.