I bought my first shrimp yesterday. I've had no experience with shrimp. I made sure when I drip acclimated it, the water was the exact same salinity before adding it. When I added it everything was fine, he was walking around and cleaned my snail shell. Today it's just hanging on a rock at the back of my tank. Not moving, just standing there. I'm sure it didn't shed; is this normal or should I be worried.

