Hello. I need some more advice. I have posted a few times about this and just want to make sure what I am doing is ok. My Betta had gotten fin rot shortly after I bought him from a structure that leached into his tank. While treating him for it he got ich. I treated him with malachite green and after about a week, ich was gone and he had regrowth. Then I put him in a 5, gallon. Heated, filtered. He has bounced back and forth with fin degeneration and regrowth for about 5 months. He also started getting gray/blue blotchy patches everywhere, body, fins. I was told it was marbling. Then a bubble popped out in the tail. Now his dorsal fin is looking melted together. Everywhere is ripping. He looks awful. So here's what I'm doing. His tank reads 0 ammonia, 0 nitrites, 5 nitrates, 80f, ph is 7.9 I added indian almond leaves 2 days ago. I have been doing 50% water changes every day. I use prime for my conditioner. I don't want to use medicine as I'm afraid to even use meds on myself. Plus I have trumpet snails and don't have a spare tank for a hospital tank. Don't want to hurt them. Am I changing too much? Anything else I should be doing?