High-fin Snapper (Symphorichthys Spilurus)

The High-Fin Snapper, also known as the Blue-Lined Sea Perch, is a striking and unique species known for its elongated dorsal fin and vibrant yellow body with electric blue horizontal lines. As a juvenile, its colorful patterns and peaceful demeanor make it an attractive addition to large aquariums. However, as it matures, it grows to a significant size and develops a more predatory nature, making it better suited for large, fish-only setups or public aquariums.

Care Information

• Maximum Size: Up to 24 inches.
• Tank Size: 300 gallons minimum; requires a very spacious tank with ample swimming room and rockwork for shelter.
• Diet: Carnivorous; feeds on small fish, crustaceans, and other meaty foods in the wild. In captivity, it accepts a variety of foods, including chopped seafood, squid, shrimp, and high-quality marine pellets or frozen carnivore diets.
• Water Temp: 72-78°F.
• Salinity: 1.020-1.025.
• Aggression: Semi-aggressive; peaceful as a juvenile but becomes more territorial and predatory with age.
• Skill Level: Advanced; requires a large, mature tank with consistent water quality and appropriate tankmates.
• Reef Compatibility: Not reef-safe; may prey on small fish, shrimp, and other invertebrates.

Special Feature - Eye-Catching Juvenile Patterns
The High-Fin Snapper is particularly prized for its vivid juvenile coloration, featuring a yellow body with bold blue horizontal stripes and an impressive, elongated dorsal fin. As it matures, the coloration remains vibrant, but its predatory tendencies increase.

Compatibility
This snapper is best kept with other large, semi-aggressive fish in spacious tanks. Avoid housing it with small or delicate species that may be seen as prey. Suitable tankmates include groupers, larger wrasses, and tangs.

Coloration

• Indo-Pacific Region: The High-Fin Snapper displays a yellow body with electric blue horizontal lines and a prominent high dorsal fin as a juvenile. As it matures, the bold patterns remain, making it a visually striking species throughout its life​.

Typical Habitat

• Distribution: Found throughout the Indo-Pacific, particularly in coral reef areas and lagoons where it shelters among rocks and coral. In aquariums, it requires stable water conditions, open swimming areas, and rockwork for hiding.