shrimp help

So I just recently bought a rare African Cobra Shrimp. I noticed he hides when he’s scared but I just realized he’s hiding behind a rock on his side and is not moving. I saw him moving earlier. Do you think he’s ok?

I had a fire shrimp 2.75 inches. He chilled under a rock cave. Pretty peaceful, didn't harm anything. Introduced another one, slightly smaller (2.25 inches?) He flips the out. When the shrimp went near his cave, he lunged at it. I made a mini cave for the little one. My larger one also lunged at...