So I read the thread about how to repair your snails shell and I was wondering on how it will be affected when it grows. And I was wondering the best way to go about fixing it. The tip fell off and I can see it's body. Thanks for the time!
Feed it plenty of calcium and Vitamin D. The best source of calcium is cuttlebone but if you can't get it, grind eggshells into a fine powder, mix with water to make a paste and spread onto the soil. Also feed it more mushrooms for Vitamin D. Cabbage and curly kale also contain some calcium. Good luck and I hope your snail's ok!
This is usually a sign of a calcium deficiency unless the snail is a decollated species (eg; Rumina Decollata, saharica, Oospira Vanbuensis etc) or unless the tip is eaten off by another snail (which shouldn't happen unless you over crowd or mix the wrong species).
Tip damage is a hard one because the snail will NEVER grow it back. Usually it is not a problem, but if you are able to see his body then its definitely "to far down". You will just have to keep him moist and hope that he retracts forward in its shell.
Usually I suggest "patching" but given the location, In cant see it being much help or necessarily even possible. I mean you could try rolling some duck tape "to a point" on his shell, but bare in mind that doing this could also take away the snails reason to "retract forward", so would likely be a regular job and not just a one of.
If you have other snails in the same tank, he should be isolated, because even non carnivorous species will eat soft flesh when it is exposed.