More info
Datasheet
| Minimum Tank Size | 300 litres / 79.25 US gallons |
| Maximum Size | 11.0cm / 4.33inches |
| Reef Compatible | Always reef safe |
| Temperament | Mostly peaceful but might be aggressive towards similar species |
| Temperature | 22.2°C / 71.96°F - 25.6°C / 78.08°F |
| Specific Gravity | 1.020-1.025 |
| Carbonate Hardness | 8-12 |
| pH | 8.1-8.4 |
General Description
The Radiant Wrasse, also known as the Rainbow Wrasse, belongs to the Labridae family. Fish of the genus Halichoeres are highly sought after for their vibrant colors and their efficacy in controlling flatworms and pyramid snails in aquarium settings. These wrasses are generally peaceful compared to other species used for pest control, though they can outgrow smaller tanks. They exhibit a diverse diet, ranging from small invertebrates to crushing crustaceans, sometimes even prey larger than themselves. When threatened, they have a tendency to burrow into the sand for protection or sleep.
Aquarium Suitability
The Radiant Wrasse is considered suitable for aquariums, albeit with care. It is recommended to keep them in pairs (one male and one female) or as one male with multiple females to maintain harmony. These fish have a delicate nature and can be sensitive during transportation and while acclimating to a new environment. They are known to eat flatworms and pyramid snails, making them useful for pest control in tanks.
Demands, Care, and Hardiness
This species of wrasse is delicate and requires specific care to thrive in captivity. They prefer a deep sandy substrate of at least 2 inches to burrow when necessary. Being sensitive during transportation, it is crucial to handle them with care and ensure a smooth acclimatization process. The Radiant Wrasse has specific dietary needs, feeding on small crustaceans like krill and zooplankton such as Cyclops and pods. It is important to monitor water parameters closely to maintain optimal conditions (recommended pH: 8.1-8.4, salinity: 1.020-1.025, temperature: 22.2-25.6°C, carbonate hardness: 8-12 dKH).
Reef Suitability
Radiant Wrasses are always considered reef safe, making them a great addition to reef aquariums without causing harm to corals or other invertebrates.
Aquarium Setup
When setting up the aquarium for Radiant Wrasses, it is crucial to provide ample hiding spots within rock formations and a sandy substrate for them to burrow into when needed. Ensuring a well-balanced diet that includes small crustaceans and zooplankton will contribute to their overall health and vitality.
Behaviour
These wrasses exhibit mostly peaceful behavior but can display aggression towards similar species. They are known to jump out of open aquariums, so having a secure lid is essential to prevent escapes.
Feeding and Diet
Radiant Wrasses primarily feed on small crustaceans like krill, mysis, and artemia, along with zooplankton such as Cyclops and pods. It is important to offer a varied diet to ensure their nutritional requirements are met.
Habitat and Distribution
In the wild, Radiant Wrasses are found in the Western Indian Ocean, specifically along the East African coast south to Natal, South Africa, and extending to Madagascar, Seychelles, and the Chagos Archipelago. They inhabit coral reefs and rocky areas where they can forage for food and seek shelter.