More info
Datasheet
| Minimum Tank Size | 1500 litres / 396.26 US gallons |
| Maximum Size | 40.0cm / 15.75inches |
| Reef Compatible | Not reef safe |
| Temperament | Might be aggressive towards other 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 Western King Wrasse, scientifically known as Coris auricularis, belongs to the Labridae family and is native to Australia. These Rainbow Wrasses undergo significant physical transformation as they mature, growing to a substantial size of up to 40.0cm. They are known to burrow into the substrate for rest and protection, requiring a depth of 2-4 inches (5-10 cm) of substrate in the aquarium.
Aquarium Suitability
Considered suitable with care, Western King Wrasses can acclimatize well when introduced to aquariums as juveniles. However, their demanding nature becomes apparent as they grow, necessitating a very large tank (a minimum of 1500 liters) due to their potentially destructive behavior and predatory tendencies towards crustaceans, sea urchins, and even small fish. When young, they feed on Mysis, Artemia, and similar foods, but as adults, they may exhibit aggressive behavior towards smaller tank mates.
Demands, Care, and Hardiness
This species is known for its hardiness, with individuals acclimating better when brought in as juveniles. They require a deep sandy substrate for burrowing, need a varied diet inclusive of larger crustaceans and invertebrates, and are hermaphroditic, capable of changing from female to male. Western King Wrasses prefer ample space for swimming and are reported to rearrange rocks and sand in the aquarium.
Reef Suitability
The Western King Wrasse is not considered reef-safe due to its hunting behavior that poses a threat to bivalves, sea urchins, and other invertebrates typically found in reef environments.
Aquarium Setup
When setting up an aquarium for Western King Wrasses, it is crucial to provide a substantial sandy substrate for burrowing and security, along with securely placed rocks to prevent toppling. Additionally, ensuring a spacious environment that accommodates their swimming habits is essential, alongside a varied diet that meets their nutritional requirements.
Behaviour
Upon introduction, Western King Wrasses may initially hide to acclimate to their new surroundings. It is advised not to disturb them during this period to facilitate a smooth adjustment process. Their natural behavior includes hunting for food beneath loose objects, which can be a concern in a reef tank if not managed appropriately.
Feeding and Diet
Western King Wrasses have a diverse diet, including larger crustaceans, other invertebrates, and small crustaceans like Krill, Mysis, and Artemia. Their feeding habits evolve as they grow, with adult individuals potentially preying on smaller fish if given the opportunity.
Dimorphism and Captive Reproduction
With hermaphroditic capabilities, these wrasses can switch from female to male as needed. However, details on captive reproduction of Western King Wrasses are not readily available, highlighting a gap in the existing knowledge about this species.
Habitat and Distribution
Native to Australia, the Western King Wrasse inhabits a range of marine environments. Their distribution is primarily limited to these regions, where they play a crucial role in the ecosystem by controlling populations of various invertebrates through predation.