So I have been fighting to treat my little guy of bad fin rot for almost 3 months now. He lost his whole entire dorsal fin and started into body rot on the scales, and a bunch of his caudal fin fin. I have done 2 treatments of maracyn 2 and several salt treatments and a triple sulphur treatment also some very clean water during all of it and a little betta fix at times too. Every time I think I am winning and he might be starting to heal, a couple days to a week go by and then I see more signs of rot again. Although the caudal would seems white and not raw and pink anymore the scales around it are a funny metallic shade and now his tail and anal fin are starting to shred and drop pieces. He doesn't flare except once In a blue moon, he is eating, and I have increased quality of food for healing, he stills comes to see me and interact but I feel bad. His color all over changes often, almost like a marble but I don't think be is, I wonder if it is stress, it is like he gets circles of dark color and parts that are metallic and then others are one color and the next you look at them they are different.?
Someone told me if he is still fighting that I should too but I feel so bad for him, it must hurt and he can't swim right because of the fin loss. I don't know what else to do and wonder if uthinizing wouldn't be kinder for him. I have ordered IAL but they will be weeks before they are here. No matter what I do he just keeps rotting get away slowly, I have heard that when it gets to body rot it is often impossible to fix. He also has been sitting in this weird almost s like position all the time since this started and I don't know if it is comfort or what?
Advice please, I will put info again down below.
2.5 get tank
Heater to 76, warmer when room is warmer.
Food is mixture of omega one pellets and Hikari pellets 2-3 a day and frozen bloodworms about once a week. Fasting one day a week or if they look bloated up.
Water changes 2-3 times per week, usually 25-50 and one almost 90% per week. Water additives are water conditioner, biological filter/water additive and immune booster.
Sponge filter with air pump
Please let me know what I should do as I feel helpless watching him suffer like this, and to make things worse my old boy is coming to the end of his life I think. He looks fine except for a bit of thinning tail fin but has been acting stranger and stranger over the last 6 months. Sometimes he floats upright and no amount of Epsom salt baths or soaks will help. He does and can swim and sit straight again but is just acting odd. He has a harder time eating for about a year now as I think he can't see well. He misses alot and I have to direct food around in front of him a while before he gets it, but he does eat. Until the last week he was always a character and would rush up to greet me and flare but now he does swim up a bit but no longer flares at me. He is almost 4 so I fear he may just be a senior fish but it sucks so much to have him failing and the other in such bad shape..
Sad fishy owner who just wants her boys to be happy. Help! And Thanks.