I added this Niger trigger 24 hours ago. He immediately went under this rock and has not moved since. I have tried Mysis shrimp 3 times right in front of him. He never moved a muscle. I’m worried he’s going to starve. White light only on for the picture even though it’s hard to see him. I have kept room light off and tank light very dark blue. Any tips on getting him to take a bite or come out??