Microspathodon chrysurus (Jewel Damsel) | Hardy and Territorial Marine Fish

The Microspathodon chrysurus, commonly known as the Jewel Damsel, is a highly resilient and visually striking damselfish, known for its electric blue juvenile coloration and distinctive yellow tail as an adult. Native to the Western Atlantic and Caribbean reefs, this species is territorial and requires ample space to coexist with other fish. It is an excellent choice for experienced aquarists who want an active and structured reef tank.

Key Benefits:

✔ Electric blue juvenile coloration – Adds a vibrant glow to marine tanks.

✔ Hardy and easy to care for – Adapts well to established aquariums.

✔ Resistant to parameter fluctuations – Ideal for experienced reef keepers.

✔ Structuring territorial role – Helps maintain tank balance by defending its space.

✔ Reef-safe with caution – Does not harm corals but can be aggressive towards smaller fish.

Technical Specifications:

• Scientific Name: Microspathodon chrysurus

• Average Adult Size: 12-15 cm

• Origin: Caribbean, Western Atlantic

• Ideal Temperature: 24-28°C

• Salinity: 1.023 – 1.025

• pH: 8.1 – 8.4

• Lighting: Moderate to strong

• Water Flow: Moderate to strong (prefers high water movement)

Care Instructions & Recommendations:

1️⃣ Compatibility: Best suited for large tanks (200L+) with robust fish.

2️⃣ Feeding: Omnivorous, consumes algae, pellets, brine shrimp, and mysis shrimp.

3️⃣ Behavior: Highly territorial as an adult, avoid keeping with timid species.

4️⃣ Acclimation: Slow drip acclimation recommended for best adaptation.

5️⃣ Maintenance: Provide rock structures for hiding and territory establishment.