
Cryptocentrus lutheri
Family: Gobiidae ยท Gobies
Also known as: Luther's Shrimp Goby, Luther's Watchman Goby, Luther's Prawn Goby
The Luther Prawn Goby is a fascinating symbiotic species that forms a mutualistic partnership with alpheid pistol shrimp in the wild and in captivity. This goby acts as the eyes of the partnership, standing guard at the entrance to the shared burrow while the nearly blind shrimp maintains and excavates their home. The shrimp keeps one antenna in constant contact with the goby's tail, and when the goby senses danger, a quick flick of its tail fin signals both partners to retreat into the burrow.
Reaching a modest 2.5 inches, the Luther Prawn Goby features an attractive cream to white body marked with irregular brown and orange spots and blotches, often with a distinctive pattern of bars on the head. Its large, elevated eyes are perfectly adapted for its role as a sentinel, providing excellent panoramic vision to detect approaching predators. This species is more understated in appearance than some of the showier watchman gobies, but its symbiotic behavior more than compensates with endless entertainment value.
Captive-bred Luther Prawn Gobies are available, and when paired with a compatible pistol shrimp species such as Alpheus randalli or Alpheus bellulus, they will readily establish their symbiotic relationship in the home aquarium. Even without a shrimp partner, this goby will excavate burrows in the substrate and make an engaging aquarium inhabitant. A fine sand substrate and plenty of live rock rubble are essential for this species to thrive.
Luther Prawn Gobies are carnivores that feed on small crustaceans, worms, and zooplankton in the wild. In captivity, they readily accept frozen mysis shrimp, brine shrimp, chopped seafood, and quality marine pellets. Feed once or twice daily, ensuring food reaches the bottom where this species feeds.
The Luther Prawn Goby is peaceful and compatible with most reef-safe community fish. May become territorial toward other bottom-dwelling gobies near its burrow entrance. Best kept singly or as a mated pair, ideally with a compatible pistol shrimp partner.
Check CompatibilityLuther Prawn Gobies form monogamous pairs and spawn within their burrow. The male guards the egg clutch until hatching. Captive breeding has been achieved, though larval rearing remains challenging due to the small size of newly hatched larvae requiring live rotifers as first food.