How much aquiarum salt should i put in with my betta as just help for his mild fin rot. As soon as my local fish store is open i'll get medicine but how much salt should i put in per gallon? there is also a african frog and 2 rabasoras. I've had lots of issues with fin rot before, im giving 2 day water chagnes, do you recommend salt bath? fin rot has been a issue for months and its gone from ok, to better, to worse, to better and now that hes not being treated back in his warm 7.5 (oppose to his 65 degree hospital) he's a lot worse. help?