
Source: Wikimedia Commons
Cryptocentrus cinctus
A beautiful goby with vivid yellow body. Symbiotic relationship with pistol shrimp observable in tank.
The yellow watchman goby (Cryptocentrus cinctus) lives over silty sand in sheltered western Pacific waters. Most specimens are bright yellow flecked with blue spots; adults reach 5-10 cm. The draw is its partnership with alpheid pistol shrimp: the nearly blind shrimp digs and maintains the burrow while the sharp-eyed goby stands guard at the entrance, signalling danger with a flick of its tail. To reproduce that in the aquarium, introduce a compatible pistol shrimp at the same time and give them a deep substrate of mixed sand and rubble so the burrow does not collapse. The goby is hardy and easy to feed, but conspecifics fight, so keep only a pair. It is prone to jumping.
Source: Wikipedia (CC BY-SA 4.0)
The Yellow Watchman Goby lives 3-5 years.
The Yellow Watchman Goby grows to 5-10cm.
The ideal water temperature for the Yellow Watchman Goby is 22〜26℃.
Origin
the Western Pacific
Lifespan
3-5 years
Size
5-10cm
Sources: LiveAquaria
Breeding season: Year-round in tropical marine conditions
Breeding notes
Monogamous pairs spawn in burrows shared with symbiotic pistol shrimps. The female deposits adhesive demersal eggs that the male guards until hatching. At 26–27 °C incubation takes approximately 4–5 days. One captive breeding report recorded first spawning when the female was ~2 years old (105 mm) and the male ~2.5 years (90 mm); these figures derive from a single captive pair and should not be taken as the minimum age at maturity for the species. Larvae undergo a pelagic phase before metamorphosing into juveniles.
Breeding requires planning, proper husbandry, and responsibility. These figures are general guidelines.
Sources: Fatherree 2005 — Spawning and Rearing the Yellow Watchman Goby (Reef Keeping Magazine, Dec 2005) / Breeders Registry — Cryptocentrus cinctus spawn report CRYCIN-121205-CASNIC-001
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Primary sources
Sources: CITES Appendices (species not listed) / Ministry of the Environment Specified Animal List / Ministry of the Environment: List of Designated Invasive Species
Regulations may change. Always verify the latest information with the relevant authorities.
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Temperature
23〜26℃
Frozen food, Artificial feed
Keep with pistol shrimp on sand bottom
Lay a deep bed mixing sand of different grain sizes with small stones so the burrow doesn't collapse. Introduce the partner pistol shrimp at the same time.
Hardy and easy to feed, taking frozen and prepared foods readily. Dropping food near the burrow entrance makes feeding easier.
Peaceful and easy to mix with other species, but fights with its own kind, so avoid keeping more than a pair.
Prone to jumping, so provide a gap-free lid. When danger nears it signals the shrimp with its fins and retreats into the burrow.
Symbiosis becomes tank's main attraction
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The ideal temperature for Yellow Watchman Goby is 22〜26℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Yellow Watchman Goby is 3-5 years. With proper care and nutrition, they can live a long and healthy life.
Yellow Watchman Goby typically reaches 5-10cm as an adult. Size may vary depending on care conditions and individual genetics.
Yellow Watchman Goby feeds on: Frozen food, Artificial feed. Aim for a balanced diet with appropriate feeding frequency.
The price of Yellow Watchman Goby varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: June 30, 2026