The Catalina Goby is not your typical goby that you would use for your tropical reef tank. They come from a colder climate off the Catalina Islands near Los Angeles. Because of this, they would be better suited for a specific colder/cooler tank and not for your regular reef tank. They are popular because of their bright colors. As with gobies, they would do better in small school but can quarrel with other species of gobies. Because of their small size, you can keep them in smaller size tanks like a 10 gallon fish tank. They can be fed frozen brine shrimps or mysis shrimps and are not picky eaters.