I was wondering if any of you could help me with my betta fish problem. I have a red veil betta and a few weeks after I got it a silvery/blue patch grew on its tail. It doesn't look fuzzy, it looks quite rough and it seems to be spreading larger. I did have an ammonia problem when i first got the fish but that was sorted out a long time ago. Ive been looking around at other posts on the forum and I cant seem to put my finger on what the problem might be as I haven't seen anything about a silvery/blue growth, only wooly fungus type growths which it isn't. The rest of its tail looks pretty tattered as well. It kind of clumps on the top fin. There are no problems with the fishes health, it looks happy and hasn't been behaving strange.
Heres a photo:
Thanks for your help