Mystery Snail Turning Dark Blue

Hello my white mystery snail has dark blue spots on it and they are large so does my tank have a calcium deficiency or what I think the shell is see through and I'm seeing the body

 

Can you post some pictures?

Calcium deficiency usually has flaking areas and bits of shell that look pitted and white.

 

I will get a pic rn




He was white when I got him I have 3 snails and I feed them a slice of cucumber every 4 days

 

Looks fine to me. Is the body dark color? I bet it’s a blue mystery, they get their color from the body showing through the shell. An ivory snail is all white because of their white body.

Here’s my blue and ivory together for comparison.

 

Ok thanks mine looks just like yours

 

I just got a gold mystery snail from the store and he DEFINITELY has a calcium deficiency so I gave him some lettuce will that help him