UGHHHH! Schwimmy has decided to be a tail biter! He had a beautiful long veil tail..not it's about half a inch long! I came home from school one day and BAM no tail. So I put a pinch of aquarium salt in and some bettafix. I don't know why he's decided to do it all of a sudden. Nothing has really changed. I put another plant in there and I thought that caused it so I took it out and he is still biting! Any suggestions on why he's doing it?
His tank is 82 degrees
It's a 2.5 gal.
And I change it twice a week (100%)