Hello again! Unfortunately I've seen him not get any better but actually a little worse. I went to the pet store and she told me to keep him in a one gallon tank half filled so he can't swim around much, put a low power heater in there, treat him with betta revive, and leave him until he's cured. Is that really a good idea? She said frequent water changes can make it worse but... I don't know. I'm so confused 
