Rolland's demoiselle Care Guide

Rolland's demoiselle, also known as the Orange-fin damselfish, is a vibrant and moderately hardy fish that adds a dash of color and activity to any marine aquarium. To ensure the health and happiness of this species, it is important to consider their specific care requirements including tank setup, water conditions, feeding, and tank mate compatibility.

Tank Setup

For Rolland's demoiselle, a well-established tank with plenty of hiding spots and room for swimming is essential. They require an aquarium with a minimum capacity of 75 liters to accommodate their territorial nature, which is extremely marked in this species. Decorate the tank with live rock formations that offer multiple hiding places to help mimic their natural environment and decrease potential aggression. Adequate lighting and a strong filtration system are also vital to maintain high water quality and replicate their natural habitat conditions in the Western Pacific Ocean.

Water Conditions

Maintaining optimal water parameters is crucial for the health of Rolland's demoiselle. The temperature should be kept between 24°C to 28°C. The pH levels should range from 8.1 to 8.4. Regular water tests and changes are essential to keep these parameters stable, as fluctuations can stress your fish, leading to health issues. Use a reliable heater and thermometer to manage the temperature and check it regularly.

Feeding

Rolland's demoiselle thrives on a varied diet that comprises both meaty foods and algae-based foods. Offer a mix of high-quality marine flakes or pellets designed for marine fishes, along with frozen or live foods such as brine shrimp, mysis shrimp, and finely chopped seafood. It is beneficial to include spirulina or other marine algaes to cater to their herbivorous needs. Feed them small quantities 2-3 times daily to avoid overfeeding and ensure all food is consumed within a few minutes.

Compatibility and Social Behavior

Rolland's demoiselle is extremely territorial and might not cohabit well with other males of the same species, especially in smaller tanks. However, they can be compatible with many other reef-safe species if introduced into the aquarium at the same time. Avoid keeping them with very peaceful or smaller fish that can be easily bullied. The presence of this fish in a community tank should be planned with consideration to its aggressive nature towards congener or similar sized fish.

Additional Care Tips

Always acclimate new Rolland's demoiselle to your tank environment slowly to reduce stress, following a drip acclimation method over several hours. Monitor their behavior regularly, as changes can indicate health problems or water quality issues. Their vibrant coloration, which indicates good health and proper care, can be maintained through optimal water quality and proper nutrition. Regular monitoring and maintenance can help prevent disease and keep your Rolland's demoiselle healthy and vibrant. Pay attention to their response to different foods, and adjust their diet as necessary to ensure optimal health and coloration.