Puriti
Aquarium Advice Addict
I was looking in at my tank and one of my male mollies(that's still in my 10 gal I haven't gotten to taking him out yet) looks like there's something on his tail fin. It's like something's layering over part of it but I can't make it out. It kinda looks like something stained his tail a bit. He's swimming at the top with his dorsal fin down. Any ideas? o.o