Symbiotic

My new yellow watchman goby and my tiger pistol shrimp. They look after each other. The shrimp is blind so the goby watches out and tells him when to run back into his burrow when danger approaches. The shrimp in return burrows for the pair of them and shares his food. They can be difficult to pair in an aquarium but they found each other in the 1st day and have set up home together. Funny to watch.