Common name: Allen's shrimpgoby
General information
Allen's Shrimpgoby, scientifically known as Tomiyamichthys alleni, is a captivating species for marine aquarium enthusiasts. This small, bottom-dwelling fish is part of the Gobiidae family, which is known for its diverse and colorful members. Allen's Shrimpgoby is particularly appreciated for its peaceful demeanor and the unique symbiotic relationship it forms with pistol shrimps.
Details
- Recommended minimum volume
- 150 liter (40 gallons)
- Salinity
- S.G. 1.020 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
- Symbiosis
- Yes
- Diet
- Carnivore
- Social
- Pair
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderPerch-like FishesPerciformes
- FamilyGobyGobiidae
- GenusShrimp GobiesTomiyamichthys
- SpeciesAllen's shrimpgobyTomiyamichthys alleni Iwata, Ohnishi & Hirata, 2000
Care
Allen's Shrimpgoby requires a well-established aquarium with a sandy substrate to mimic its natural environment. The tank should also include plenty of live rock to provide hiding places and to encourage the growth of microfauna, which the goby may feed on. It's important to cover the aquarium, as gobies can jump when startled. A varied diet of meaty foods, such as frozen mysis shrimp and brine shrimp, will help maintain their health and coloration.
Reproduction
In the aquarium, Allen's Shrimpgoby may spawn if kept in a pair. The male guards the eggs, which are typically laid within a burrow or sheltered area. Successful breeding requires excellent water quality and a stress-free environment.
Symbiosis
One of the most fascinating aspects of Allen's Shrimpgoby is its relationship with pistol shrimps of the genus Alpheus. This mutualistic symbiosis involves the shrimp digging and maintaining a burrow that both the shrimp and the goby inhabit. The goby acts as a lookout, warning the shrimp of approaching predators. In return, the shrimp provides the goby with a safe haven.
Habitat
Allen's Shrimpgoby is found in the Western Pacific, from Indonesia to the Philippines, and north to Japan. They inhabit sandy and rubble substrates in coastal reefs and lagoons, often at depths of 5 to 35 meters.