I've been treating my betta's fin rot using the aquarium salt treatment suggested in the sticky, and after a couple of days his fins are already showing improvement.
The sticky says not to continue the salt treatment for more than ten days. I was wondering what my plan should be after the 10 days? Normally I keep my betta in a larger tank with a (friendly) platy, but I isolated him to treat the rot. Should I continue to keep him isolated and do very-frequent water changes until his fins are fully back? Should I resume the salt treatment at some point?