Rhomboid fairy wrasse Care Guide

The Rhomboid fairy wrasse, also known as the Purplemask wrasse, is a strikingly beautiful and vibrant marine fish that calls for specific care to thrive in a captive environment. This species is native to the Marshall Islands and is known for its vivid coloration and dynamic presence in the aquarium.

Tank Setup

To mimic their natural habitat, a spacious tank is essential for the wellbeing of the Rhomboid fairy wrasse. A minimum tank size of 150 liters per fish is recommended to provide ample swimming space. These fishes prefer a stable environment with temperatures ranging between 22°C to 28°C and a pH level from 8.1 to 8.4. An adequately set up aquarium should include plenty of live rock formations and coral branches to provide hiding spots and territories, which are crucial given their extremely territorial behavior. Additionally, ensure the tank is equipped with a well-fitted lid or covering as the Rhomboid fairy wrasse is known to jump when startled or stressed.

Feeding

Rhomboid fairy wrasses are carnivorous, feeding mainly on small invertebrates in their natural habitat. In captivity, their diet should consist of a variety of high-quality marine meats including Mysis shrimp, brine shrimp, and finely chopped seafood. Supplementing with high-quality, nutrient-rich pellets or flakes formulated for marine carnivores can also help maintain their health and vibrant coloration. Feed small amounts two to three times a day, making sure not to overfeed as it could foul the water and lead to health issues.

Compatibility and Behavior

This species is extremely territorial and can show aggression towards other fairy wrasses or similarly sized and shaped fish, especially in smaller tanks. They exhibit a hierarchy system, so careful consideration is needed when introducing them into a community tank. They can coexist with many other species but avoid housing them with very docile or smaller fish that might be intimidated by their vibrant and active nature. Ideal tankmates include larger, peaceful species that do not encroach on the wrasse’s territory.

Health and Maintenance

Regular tank maintenance is critical for keeping your Rhomboid fairy wrasse healthy. Perform weekly water changes of at least 10-20% to ensure optimal water quality, checking regularly for proper temperature, salinity, and pH. Monitor their health closely for any signs of distress or disease, such as changes in eating habits, color fading, or unusual swimming patterns. Quarantine any new fish before adding them to the main tank to prevent the spread of disease.

With careful attention to their environment, diet, and social compatibility, your Rhomboid fairy wrasse can be a joyful and colorful addition to your marine aquarium. Their brilliance and dynamic personality will surely brighten any marine setup.