For some reason I could not post on the growth forum.
Anyway, two of my snails, Mort and Misty have a yellow area to their shell (around the rim) I don't know whether this is their shell growing though? Or if it's a problem. They have cuttlefish for growth, 2 and lots of lettuce changed daily...so i'm a bit worried if it's an illness?
Some of the sections are now set up so that new thrreads cannot be posted, because moderators are in the process of cleaning up the forum to make information easier to find
For the new growth to appear yellow is perfectly normal. It is also normal for this to be soft so it's best not to touch it. It will harden and darken as the snail grows, so it's nothing to be concerned about