Emerald crab shell turning white

[schunior]

So, three emerald crabs in my 90, all doing fine, except for their shells seem to be turning white. Thye have been in the tank about 8 weeks. Water is fine, just tested everything yesterday. Everybody else in the tank is fine.
Anyone run into this before?

 

[milomlo]

Mine are doing that as well. I was told it is because they have no bubble algae to eat. But IDK

 

[travis89]

Mine is to and I do have bubble algae it just won't eat it so IDK either.

 

[seannmelly]

Yea, I have the same problem with our emerald, however we don't have any bubble algae for him...so that makes a third idk

 

[payton 350]

how are your calcium levels

 

[travis89]

Originally Posted by Payton 350
how are your calcium levels
Mine are around 400.

 

[seannmelly]

Mine are about 400 too