Description
Blue Tang No Tail (Paracanthurus hepatus)
A vibrant and iconic surgeonfish recognized for its deep blue body, black “palette” pattern. Known for its constant grazing on algae, it adds dynamic movement and bold coloration to aquariums.
Native:
Indo-Pacific region, including the Great Barrier Reef, Philippines, Indonesia, and surrounding coral reef systems.
Lighting:
Moderate to high reef lighting.
Placement:
Active mid to upper swimmer. Requires ample open swimming space and well-established live rock for grazing. Minimum tank size: 120 gallons (450+ liters).
Temperature:
24–28°C (75–82°F)
Salinity:
1.023–1.025 SG
pH:
8.1–8.4
Alkalinity:
8–12 dKH
Diet:
Herbivore. Feed marine algae (nori), seaweed sheets, spirulina, herbivore pellets, and vegetable-based frozen foods. Occasional mysis shrimp or enriched frozen foods can supplement. Frequent feeding maintains health and coloration.
Adult Size:
Up to 30 cm (12 inches)
Care Level:
Moderate (requires proper tank size, stable water conditions, and algae-based diet)
Compatibility:
Generally reef-safe. Compatible with clownfish, tangs (with caution), angelfish, wrasses, and other peaceful community marine species.
May show mild territorial behavior toward other tangs or similar-shaped fish in smaller tanks.
Note: Like all surgeonfish, it has a sharp caudal spine for defense — handle carefully.
