I bought this Piraya from Pedro like a month and a half ago and he's had these dots on the fin in front of his caudal fin, I think its call the Adipose fin? What is this and What can I do to help. I've tried adding salt and that didn't work, and I checked all my parameters and they were good. Should I go with a stronger salt treatment or get medicine? It hasn't gotten any worse since I got him. Thanks for the help
