Noticed the dorsal fin of my Yellow Tang looks like it's deteriorating, or nipped. The other tankmates are pretty mellow (false percs, firefish, chromis)...and they have all been together for 2 years. Is this diet related? I feed mysis/brine/krill mixture, occasionally flake, and nori (although I ran out of nori about 2 weeks ago)...suggesions??
<a href="http://s24.beta.photobucket.com/user/sigepbam/media/Tang_zpsfe27bcfe.jpg.html" target="_blank"><img src="http://i24.photobucket.com/albums/c25/sigepbam/Tang_zpsfe27bcfe.jpg" border="0" alt=" photo Tang_zpsfe27bcfe.jpg"/></a>
<a href="http://s24.beta.photobucket.com/user/sigepbam/media/Tang_zpsfe27bcfe.jpg.html" target="_blank"><img src="http://i24.photobucket.com/albums/c25/sigepbam/Tang_zpsfe27bcfe.jpg" border="0" alt=" photo Tang_zpsfe27bcfe.jpg"/></a>
