It didn't come in contact with chemicals. When I dose, I dose in sump.1 of 2 things might be happening to it:
1.) Something is irritating it or has irritated it. It may have been stung or have come into contact with some form of chemical from dosing or feeding. Or flow is low and some leftover food/detritus has burned it a bit.
2.) It's starting to shed aggressively. Part of a natural process. A little higher flow may help.
Those are my two guess. Good luck.
Thank you! Hope nothing will happen to it and I don't have to frag it.Nice leather!
I have no Idea what that is but I hope it's OK.
Nice Leather indeed!