Yellowtail Blue Damsel

The Yellowtail Blue Damsel is a classic reef aquarium fish known for its brilliant electric-blue body contrasted by a bright yellow tail. Hardy, colorful, and active, this species provides exceptional color in a relatively small package and is generally considered one of the more manageable damselfish for community reef aquariums.

Reef safe, adaptable, and easy to care for, the Yellowtail Blue Damsel is an excellent choice for both newer and experienced reef keepers.

🟢 Quarantined (Minimum 2 Weeks) – Fully Conditioned & Eating

Quick Facts

• Care Level: Easy
• Temperament: Semi-Aggressive
• Reef Compatibility: Reef Safe
• Minimum Tank Size: 20 gallons
• Size: Up to approximately 3 inches
• Scientific Name: Chrysiptera parasema

What Makes This Fish Special?

The Yellowtail Blue Damsel stands out for its intense blue coloration and sharply contrasting yellow tail. Under reef lighting, the blue can appear almost fluorescent, making this small fish highly visible even in a colorful coral display.

It is also one of the more popular damselfish because it combines the durability and adaptability damsels are known for with a temperament that is generally more manageable than many larger or more aggressive damsel species.

Their small adult size also makes them a great option for adding bold color without requiring a large centerpiece fish.

Behavior & Husbandry

Yellowtail Blue Damsels are active fish that spend much of their time swimming around rockwork while maintaining a preferred territory.

They appreciate caves, crevices, and other hiding areas and may become more territorial as they mature. Although typically less aggressive than many damselfish, established individuals can still defend their area against smaller or similarly sized fish.

Providing plenty of rockwork and visual barriers helps reduce territorial conflicts.

Feeding & Diet

Omnivorous and easy to feed.

What We Feed at Lush Corals:

• Frozen mysis shrimp
• Enriched brine shrimp
• High-quality pellets

In Your Aquarium:

• Frozen foods
• High-quality pellets
• Flake foods
• Small meaty marine foods

A varied diet helps maintain vibrant coloration, good body condition, and long-term health.

Compatibility Notes

Compatible with:

• Clownfish
• Gobies
• Blennies
• Wrasses
• Tangs
• Cardinals
• Most appropriately sized reef fish
• Corals and reef invertebrates

Use caution when housing with:

• Very small or timid fish
• Other territorial damselfish
• Multiple damsels in smaller aquariums

Best maintained in an aquarium with adequate rockwork and plenty of hiding places.

Lush Corals Quarantine Process

This fish has completed our quarantine process and is fully conditioned prior to sale.

Each fish is:

• Carefully inspected upon arrival
• Proactively treated and observed
• Monitored for health and behavior
• Conditioned to eat prepared foods
• Evaluated to ensure a strong feeding response

This helps ensure your fish arrives healthy, feeding, and well-adjusted, giving you a strong start in your aquarium.