Male Platt with similar lump
About 2 weeks ago i noticed a small raised bump near the tail fin of my male Platy. Same color as his scales slightly raised underneath. I made a note to keep an eye on it. Well today it looks as if it has ruptured or something. It looks like something is hanging out but i think its part of him. I dont know and need help to identify and treat this problem. Please help. Thanks. All of the water parameters are good. Note: it did not look white until it ruptured. Ive dealt with ich before and i don't believe this is ich. He is acting normal just a worried fish lover here.