This goby is a marvelous addition to the passive community tank. Adults live in pairs and hover several inches from the entrance to the burrow. Can be kept in pairs,but individuals of the same sex will fight, especially two males in a smaller aquarium. Provide a bed of sand and coral rubble where they can burrow and hide. 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.