This shrimpgoby will reach a length of just over 5 inches.This is a symbiotic goby with alpheid shrimps. (pistol shrimp)Feed this fish meaty foods that are appropriate to the fish size. Offer squid, chopped clams, fresh or frozen shrimp, brine or mysis shrimp.In its natural environment it lives on sandy bottoms.Gobies compose one of the largest family of fish in the ocean. These small fish live around reefs or on sandy flats. Many of the Gobies are known for their burrowing behavior. These fish use burrows in the sand for safety. Some of the Goby species are known to share their burrows with Pistol Shrimp; behavior that can be duplicated in the home aquarium. Most Gobies have cupped ventral fins that nearly join just below their gill plates that serve as perching mechanisms so the Goby can always be on the lookout in a resting position. The Goby is a tremendous addition to the home aquarium.