When I bought my first betta it came with fin rot, something I wasn't familiar with when I first started out. I looked after the little guy and followed everything to the letter but Aden sadly didn't make it. Anyway, to deal with my grief I bought a new one a week later who I named Sorbet, a marble line Rosetail who was fit and healthy and the bestest little fishie anyone could hope for but this week I have noticed Sorbets tail isnt so rosy anymore. His once enviable cellophane tail is shaped more like a plakat than a RT and I don't know why. My water params are 0 0 0 and I change my water once a week, it used to be twice but the little dude always got stressed, so it leaves me with two options --
1) Flying fox is biting his tail
2) Sorbet is biting his own tail
If I were to describe his tail I would say it looked more like I had cut it off with a scissors than the melting effect fin rot has. The tail isn't too bad but the curly bits at the end of his tail have gone, i'm just worried it will get worse.
Like the title says I think this betta is going to be my last :(