First Arthur had one, and now Aisu has the exact same thing..it's like a clean split near the middle of his tail. I don't know what it could be other than the plants They both live in seperate 2.5 gallons and I clean their water every 2 days..I think I need to get rid of the plastic plants and get new soft ones tomorrow when i go shopping for my sorority stuff.
should i try giving them a salt bath first? arthur's already had 2 and bettafix but it doesn't seem to be healing his fins. this is really frustrating.