How often should I replace my reef cleaning crew?

[Dr. Dai Phan]

Greetings to all,

It has been 14 months since I added the 130 gallon rated cleaning crew. Now I don't see as many snails, hermit crabs and it has been months since I saw the emeral crabs. It is time to restock? DP

 

[neilanh]

Restocking CUC is an on-going thing. Pretty much every time I go to an LFS for something I'll pick up more snails or crabs, so I'm constantly replenishing the CUC.

 

[Kurt_Nelson]

Constant replenishment can imply that you have too many to start with. Depends on why they're dieing off.