Peppermint shrimp

Emerald crabs and peppermint shrimp tend to hide in the rocks. You probably wont see either regularly. I have 1 emerald and only see him once a week or so briefly.

Also, its worth asking (and someone else probably will as well), how did you acclimate both the emerald crabs and shrimp?
when i first got my 2 peppermints i didnt see them much i could catch a glance of them in a cave sleeping upside but after 2 weeks or so the come out all the time.. they know when i feed the clownfish cause they usually come out at that time too lol good luck
Shrimp can be very seclusive creatures. So, give it a few weeks to build up trust with you, and you should see it much more. :)