The **Yellowtail Blue Damselfish** is a favorite among aquarium enthusiasts due to its vibrant colors, compact size, and affordability. Its resilience makes it a common choice for new aquarium setups, although this can be stressful for the fish. Once settled, the **Yellowtail Blue Damselfish** may exhibit territorial behavior towards new tank mates.

Reaching an adult size of about 3 inches, the **Yellowtail Blue Damselfish** can comfortably live in tanks as small as 29 gallons. Its striking electric blue body and bright yellow tail make it a visually appealing addition to any aquarium.

These fish are reef-friendly and do not disturb corals or invertebrates. As omnivores, they require a balanced diet of both meaty and plant-based foods, thriving on a mix of mysis and brine shrimp, as well as frozen and flake foods.

• Color: Blue, Yellow
• Temperament: Semi-aggressive
• Tank Requirement: 29 Gallons
• Diet: Omnivorous
• Max Size: 3 inches
• Habitat: Western Pacific Ocean
• Reef Safe: Yes
• Ideal for: Beginners
• Water Parameters: 74-82?F, SG 1.020-1.027, pH 7.9-8.5
• Alternate Names: Azure Damselfish, Yellowtail Demoiselle, Goldtail Demoiselle

Size Guide: Tiny: Up to 0.75", Small: 0.75-1", Small/Medium: 1-1.5", Medium: 1.5-2", Medium/Large: 2-2.5", Large: 2.5-3", Extra Large: 3-3.5", Extra Extra Large: Over 3.5"

Current Size: 1-2 inches