I see a pile of sand forming in the back of the tank. My bag of live sand had a lot of shells and rubble in it so I think the shrimp has enough to play with. I see some shells moving position. I think I see one of the hi-fins poking out in the back. They are just still hiding I'm pretty sure. I'm going to add some food here in a bit. I just wish I could see them and confirm they are still alive.