My fish Neptune got some fin rot. It got pretty bad and the top fin completely disappeared and the top of his body started turning white. I went to Albany Aquarium to ask if there was anything that I could/should do. They gave me a product (anti-bacterial I think–I will get specific product later) and a schedule with slightly modified directions. I treated for five days and it seems to have worked. The first two images were taken on the last day of treatment after I put a few plants back in. The closeups were taken the first day of treatment when the fin was at it’s worst.