One of my bettas has fin rot. The aquarium salt and 100% water changes seemed to be helping. I'm on the fifth day of treatment dosing 1tsp per gallon, when suddenly my betta's fins look even worse. When I left this morning for work, his fins didn't look this bad. The progression of the fin rot has doubled in pace. Should I still use aquarium salt? Should I switch to an antibiotic? Should I change his water twice a day?
He is currently in a 1/2 gallon container with a heater, which is keeping the water at 78 degrees. I don't know what to do...