The **Blueline Angelfish** (Chaetodontoplus septentrionalis) is a stunning marine fish, appearing in the aquarium trade only during specific seasons, making it a rare find for hobbyists. This species adapts well to reef tanks and becomes quite resilient once accustomed to aquarium life.

As juveniles, the **Blueline Angelfish** features a striking yellow stripe behind its eyes, along with the signature blue lines. As they mature, the yellow stripe fades, but the face develops a yellow tint, and the yellow tail remains.

Reaching a maximum size of approximately 8.5 inches, the **Blueline Angelfish** thrives in aquariums of at least 150 gallons. It prefers peaceful tankmates and quickly establishes its place in the social hierarchy.

This omnivorous fish enjoys a diet of meaty frozen foods and benefits from algae-based foods or Nori to maintain its health.

Specifications:

• Tank Size: 180 Gallons
• Temperament: Semi-Aggressive
• Maximum Size: 10 inches
• Reef Compatibility: With Caution
• Experience Level: Advanced
• Water Conditions: 74-82?F, SG 1.020-1.027, PH 7.9-8.5

If you have inquiries about the **Blueline Angelfish** or its compatibility with your aquarium, feel free to reach out to our team at Among The Reef.

Size Categories: Tiny: Up to 2 inches, Small: Over 2-2.5 inches, Small/Medium: Over 2.5-3.5 inches, Medium: Over 3.5-4.5 inches, Medium/Large: Over 4.5-5.5 inches, Large: Over 5.5-6.5 inches, Extra Large: Over 6.5-7.5 inches, Extra Extra Large: Over 7.5-8.5 inches, Show Size: Over 8.5-10.5 inches, Jumbo: Over 10.5 inches