I have a lot of MTS's and Ramshorn snails that are turning white! I've never seen this happen before. It seems like it has started with in the last month or less since my last re-scape of the tank.
Here is a ramshorn
and one of an MTS
could this just be from old age? or some sort of deficiency.
Also I have alot of old dead snail shells in my tank. From loach lunches or old age. If these accumilated would they eventually start to harden my water and raise my pH. I know your not suppose to put decorative real shells in your tank for that reason.