I have a bit of a problem. The betta I bought today has very mild fin rot from the store I got him from. I now have him in a planted, filtered, heated, 9 gallon tank and I will feed him Hikari Betta Bio Gold pellets once he's settled in. I plan on doing 33% water changes once every week.
Do I need to treat him with Aquarium Salt or other medications? If so, can I use Saxa Rock Salt as Aquarium Salt? If not, should I do water changes more often because of his fin rot?
I hope he will recover without the stress of medications! Thanks in advance!