Treating finrot

[Aquaria]

Any way to treat said disease in dt guy at LFS told me to buy melafix or w/e but I'm not using that stuff after what I read he's a 6 line and I really don't wanna try to catch him.. I was reading about putting antibiotics in the food sounds better also I got him like this he was being picked on. he wasn't eating when I got him 2 days ago and he was eating like a pig today.

[Aquaria]

Can it heal on it's own?

[Aquaria]

Well the 6line answered my question if it will heal on its own. At least if he don't make it he died in much better conditions .... Considering tearing the tank apart to catch him but I'm wondering if it will even do anything half histail disappeared overnight and he's not looking very peachy right now