Betta rescue sad boy with fin rot
Hi, I'm looking for some advice. If you could help me out at all that would be great. I just saved a betta from one of my coworkers. He was being kept in a 2 gallon, unheated, very dirty tank. He has a more-than-mild case of fin rot. I have a 5 gallon currently cycling for him but it unfortunately won't be ready for at least a couple of weeks so he'll have to stay in the two gallon for a bit. I do have a heater for him at least. I got stresscoat, and am planning on doing daily 25-50% water changes. Is there anything else I should do to keep him more comfortable in the meantime? I bought some aquarium salt but I wasn't sure if I should use that now or see how he does with some clean water first. There are some plants in his temporary home, should I take them out before dosing aquarium salt if I end up going that route? I've attached some pictures, he's got some funny coloring that worries me.