Hi guys! I have a halfmoon black orchid betta male named Noah. I noticed a week ago that he had some fin rot. It didn't look like it was breaking off, but his tail looks like a crown tail instead of the halfmoon. He lives in a 6.5 gallon, and he lives with 3 small rosy red minnows and a black racer nerite. I plan on moving him and his tankmates to a 12 gallon soon. His fin rot has postponed the move. How can I cure it? I've been treating him with jungle's fungus cure, and he hasn't gotten any better or worse. Is it a bacterial infection? His tank is fully cycled.