Nerite Shell Eroding?
I noticed my nerites' shells are starting to look a bit strange. Is its shell eroding from soft water? And if so, is there a way of reversing it so the shell grows back?
I tested the pH at 7.6, and I don't have a hardness test at the moment (I have one coming in the mail, it should be here in two days.) Ammonia, Nitrite are zero. Nitrate is ~5.
Pictures are of the snail and the tank it's in, in case it helps.