Hello all, I am new to this and have never posted before. I was at PetSmart today and saw a male betta fish which had a cotton like growth taking over his body. I knew this fish was going to die unless I took him, so I bought the treatments that I thought might help, being Fungal cure and Life Guard, which I now know is useless against what I think he has. From all my research i am now pretty sure he has columnaris. I have given him one salt dip with aquarium salt for 8 minutes after watching a detailed video on it. I am not sure how often to do this however. Lastly, all the medication i need is apparently not sold anywhere after a long night of calling every possible store. I do not believe he will survive if i order medication, and I do not know what all i need. Any help would be greatly appreciated! I do not want to see him pass