Corroded Nerite shell

[plumboy21]

Hi bros,

My Nerite snails' shells seemed to be corroding away. Everything else in my 2ft tank is doing fine, plants, fishes, shrimps. Though the snails are eating, I can't help but think they would eventually die if the shell corroded further. I have added coral chips in my external filter yesterday, wonders if that helps. Any help will be appreciated.

Sorry moderator if i posted in the wrong place.

[Cross]

Can't be helped unless its placed in non acidic waters. If possible can house them in a seperate tank to recover