The Yellow Watchman Goby is also known as the Yellow Shrimp Goby. The head and body are yellow-orange with bright blue spots on the head and fins. The Yellow Watchman Goby wears an amusing perpetual frown, and likes to peek out from behind rocks. They have been known to form symbiotic relationships with pistol shrimp.The aquariums should have plenty of loose coral rubble, ample swimming room, and a sand bottom for burrowing. It rarely becomes aggressive towards other fish, but it is territorial, and will fight with its own kind unless they are a mated pair. The Yellow Watchman Goby diet should consist of meaty preparations either fresh or frozen.