Species Description…

Scientific Name: Cryptocentrus cinctus

Common Name: Yellow Watchman Goby

Species Group: Goby

Habitat: Reef Safe

Care Level: Beginner

Temperament: Peaceful

Diet Type: Carnivore

Role in Aquarium: Community Fish

Max Fish Length: 4 (inches)

Min Aquarium Size: 20 (gallons)

Native Range: Indo-Pacific, including Indonesia, the Philippines, and the Great Barrier Reef

Cryptocentrus Cinctus - The Yellow Watchman Goby

Cryptocentrus Cinctus (The Yellow Watchman Goby)

Native to the Indo-Pacific, commonly found in sandy bottoms near coral reefs and rocky outcrops.
Recognized for its bright yellow body, often speckled with blue spots, giving it a distinctive look.
Known for forming symbiotic relationships with pistol shrimp, where the goby acts as a lookout while the shrimp burrows.
A peaceful and hardy species that is well-suited for beginner and experienced aquarists alike.
Best kept in an aquarium with fine sand, live rock for shelter, and stable water conditions.

Carnivorous, feeding on small crustaceans, worms, and zooplankton in its natural habitat.
Requires a varied diet consisting of frozen mysis shrimp, brine shrimp, and high-quality marine pellets.
Readily accepts prepared foods and benefits from occasional live feedings.
Should be fed multiple small meals daily to maintain energy levels and good health.
A protein-rich diet enhances its coloration and strengthens its immune system.

Prefers sandy or rubble-covered reef environments with plenty of hiding spots.
Frequently seen perching near burrows, especially when paired with a pistol shrimp.
Aquarium setups should include live sand, small caves, and rock structures to mimic their natural habitat.
Requires stable water conditions and moderate water flow to thrive.
Providing a peaceful environment helps reduce stress and encourages natural behavior.

Optimal water temperature: 74-80°F (23-27°C) for maintaining a healthy metabolism.
Preferred pH range: 8.1-8.4, with a salinity level of 1.020-1.025.
Requires stable water parameters and regular maintenance to prevent stress-related illnesses.
Reef-safe and does not pose a threat to corals or invertebrates.
Providing fine sand and burrowing spots helps encourage natural behaviors.

Peaceful and best suited for community tanks with other non-aggressive fish.
Compatible with clownfish, wrasses, cardinalfish, and other reef-safe species.
Often forms a beneficial relationship with pistol shrimp, making them excellent tank mates.
Should not be housed with aggressive fish that may intimidate or outcompete it for food.
Providing ample hiding spots and open sandy areas minimizes territorial disputes.

A cautious but curious species that spends most of its time near its burrow.
Frequently observed watching its surroundings and retreating to its burrow when startled.
More confident when paired with a pistol shrimp, engaging in cooperative digging and defense.
Providing a well-structured reef environment supports natural interactions and reduces stress.
Over time, it may become accustomed to its caretaker and recognize feeding routines.