I have had a male betta since March. His fins started tearing in May. The fin healed after I started regular W/Cs. The issue came back in April it slowly got worse. Tearing then healing slightly, tearing then healing slightly. But he was losing fin faster than he could heal. I used aquarium salt and API Stress coat but now I am realizing that does nothing to stop the infection. Recently after placing more plants in the tank large sections of the fin have gone. This is what really made me panic. His fin is tattered and half way to his body! I didn't know what to do so I took everything out of his tank except a hide and a thermometer. No gravel. I also did a 100% W/C and moved the tank away from a window ( This I expect contributed to the fungal growth because of the direct sunlight and increased temp) I dissolved 5 tsp of aquarium salt in. The water change caused a .50 ppm Ammonia spike. Now I am going to the pet store to get medicine but am not sure what will work best. I am thinking Jungle Fungus Eliminator in combination with Methylene Blue. Is this the best option? I am posting from a phone so I am figuring out how to get picture of his situation but until then I will describe. This is major fin rot, no black around tears just tearing with no sign of repair yet. Here is what I'm working with 5 gallon hex tank Fully cycled some days but most of the time I have .25 ammonia due to it being in my tap. .5 ammonia now. 0 nitrites, 5-10 nitrates. Yes I have API master test kit. No plants right now everything is removed .