Bluespotted Watchman Goby

The Bluespotted Watchman Goby is a robust and attractively marked shrimp goby known for its vivid orange body covered in brilliant blue spots. This species exhibits two distinct color phases: one predominantly orange with blue spots and another that tends more toward brown with blue markings. Both phases are equally attractive and add considerable visual interest to the bottom of a reef aquarium. Growing to about 5.5 inches, this is one of the larger shrimp gobies commonly available in the hobby.

Like other Cryptocentrus species, the Bluespotted Watchman Goby forms a fascinating symbiotic partnership with pistol shrimp of the genus Alpheus. The nearly blind shrimp excavates and maintains a shared burrow while the goby stands guard, alerting its partner to potential threats through subtle body movements. Providing a pistol shrimp partner and a sand substrate of at least 2-3 inches will allow aquarists to observe this remarkable relationship firsthand.

The Bluespotted Watchman Goby is hardy and easy to care for, making it suitable for beginners. However, it can be semi-aggressive toward other bottom-dwelling gobies and may defend its burrow territory vigorously. A minimum tank size of 30 gallons is recommended, with a sandy substrate and rubble for burrow construction. This species is reef-safe, readily accepts a variety of foods, and provides both beauty and behavioral interest in the aquarium.