Common name: Wrasse
General information
The Ringwrasse, scientifically known as Hologymnosus annulatus, is a vibrant and active fish that adds both color and dynamism to a saltwater aquarium. This species is known for its striking appearance, with a series of bold, ring-like patterns adorning its body, which can vary in color from pink to a reddish hue as the fish matures. The Ringwrasse is a member of the Labridae family, which is renowned for its diverse and often brightly colored members.
Details
- Recommended minimum volume
- 300 liter (79 gallons)
- Salinity
- S.G. 1.022 to 1.025
- Temperature
- 22 to 26 °C (72 to 79 °F)
- Acidity
- pH 8.1 to 8.4
- Average size
- 45 cm (1′6″)
- Care level
- Moderate to easy Needs varied diet & hiding places
- Diet
- Omnivore Enjoys mysis, brine shrimp, veggies
- Social
- Solo Can be territorial, best kept alone
- Reefsafe
- No May nip at corals and clams
- Aggression
- Semi aggresive Aggressive towards smaller fish
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderPerch-like FishesPerciformes
- FamilyWrassesLabridae
- GenusWrasseHologymnosus
- SpeciesWrasseHologymnosus annulatus (Lacepède, 1801)
- SynonymsHemigumnosus semidiscus (Lacepède, 1801)Hologymnos annulatus (Lacepède, 1801)Hologymnosus semidiscus (Lacepède, 1801)Labrus annulatus Lacepède, 1801Labrus semidiscus Lacepède, 1801
Care
Ringwrasses are considered moderate to care for due to their specific dietary and environmental needs. They thrive in larger aquariums that provide plenty of swimming space and rockwork for hiding. A varied diet of meaty foods, including frozen mysis shrimp, brine shrimp, and other marine-based proteins, is essential for their health and well-being. It's important to note that they may not be suitable for reef tanks as they can disturb smaller invertebrates and corals.
Reproduction
In the wild, Ringwrasses are protogynous hermaphrodites, meaning they are born female and have the ability to change to male later in life. This change is often triggered by social cues or the absence of a dominant male. In the aquarium setting, breeding Ringwrasses can be challenging, and there is limited information on successful captive breeding.
Habitat
Ringwrasses are found in the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They prefer clear lagoon and seaward reef environments where they can swim freely and forage for food. They are typically found at depths ranging from shallow waters to about 30 meters.
Hobbyists should be aware that while the Ringwrasse is a captivating addition to a marine aquarium, it requires careful consideration of tank mates and environmental conditions to thrive.