Common name: Target shrimp-goby
General information
The Watchman Goby, also known as the Yellow Prawn Goby or Yellow Shrimp Goby, is a popular marine fish among aquarists due to its interesting behavior and compatibility with a variety of tank mates. Cryptocentrus strigilliceps is known for its symbiotic relationship with pistol shrimp, which adds an intriguing dynamic to the aquarium.
Details
- Recommended minimum tank volume
- 75 liter (20 gallons)
- Salinity
- S.G. 1.022 to 1.025
- Temperature
- 24 to 28 °C (75 to 82 °F)
- Acidity
- pH 8.1 to 8.4
- Average size
- 12 cm (5″)
- Care level
- Moderate to easy Needs a sandy substrate for burrowing.
- Diet
- Carnivore Enjoys a variety of meaty foods.
- Social
- Pair Pairs well, often with a shrimp partner.
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderPerch-like FishesPerciformes
- FamilyGobyGobiidae
- GenusShrimp GobyCryptocentrus
- SpeciesTarget shrimp-gobyCryptocentrus strigilliceps (Jordan & Seale, 1906)
- SynonymsCryptocentrus koumansi (Whitley, 1933)Mars strigilliceps Jordan & Seale, 1906Obtortiophagus koumansi Whitley, 1933
Care
Watchman Gobies are relatively easy to care for, making them suitable for both novice and experienced aquarists. They prefer a tank with a sandy substrate that allows them to burrow and create shelters. These gobies are peaceful and can be kept with a variety of other non-aggressive fish and invertebrates.
Reproduction
In the aquarium, Watchman Gobies may form monogamous pairs and spawn within the safety of their burrows. The male typically guards the eggs until they hatch.
Symbiosis
One of the most fascinating aspects of the Watchman Goby is its symbiotic relationship with pistol shrimp of the genus Alpheus. The shrimp maintains the burrow while the goby keeps watch for danger. This partnership is a remarkable example of mutualism, where both species benefit from each other's presence.
Habitat
Cryptocentrus strigilliceps is found in the Indo-Pacific region, inhabiting shallow lagoons and reef slopes with sandy substrates. They are often observed in pairs or small groups near their burrows, which they share with their shrimp partners.