I just placed my cleaner shrimp and 2 clown fish into my DT and have noticed that the shrimp seems to have taken up refuge under a piece of LR. He has been hanging there upside down now for several days and occasionally peeks his head out. He seems to like something down there as he appears to be cleaning the LR like nobody's business. I was wondering if there is a time frame for when he will interact with the fish and attempt to clean them, or do some shrimp and fish never get together for cleaning? Thanks for any input!