Tomini Tang – Ctenochaetus tomini

The Tomini Tang is a stunning and hardy species of tang, known for its vibrant yellow coloration and distinctive shape. This peaceful and active fish is a popular addition to marine aquariums, especially for those who enjoy a clean, algae-free tank.

Description:

Common Name: Tomini Tang

Scientific Name: Ctenochaetus tomini

Family: Acanthuridae

Size: Up to 8 inches (20 cm)

Coloration: Yellow to olive-green body with a distinctive pattern of white spots or streaks. The tail fin is typically yellow, and the fish has a sharp, spiny tail spine for self-defense.

Native Region:

The Tomini Tang is found in the Indo-Pacific region, particularly around the Tomini Bay in Indonesia, which is where it gets its name. It inhabits coral reefs, particularly in areas with rubble, and is often seen grazing on algae.

Aquarium Setup:

Tank Size: Minimum 70 gallons to provide enough swimming space.

Rockwork: Plenty of live rock or other hard structures are essential for grazing and hiding.

Swimming Space: The Tomini Tang enjoys swimming in open areas, so its important to leave enough room for this active fish to move freely.

Water Parameters:

Temperature: 72-78F (22-26C)

pH: 8.1-8.4

Salinity: 1.023-1.025 specific gravity

Hardness: 8-12 dKH

Care Level:

Difficulty: Moderate; requires a stable environment and good water quality.

Diet: Herbivorous; primarily feeds on algae. It will graze on live rock, so supplement with algae sheets, spirulina, and high-quality pellets.

Behavior: Generally peaceful and non-aggressive, but can show territorial behavior with other tangs or similarly shaped fish.

Reef Compatibility:

Reef-Safe: Yes, the Tomini Tang is reef-safe and will not bother corals or invertebrates. However, it may nip at certain types of macroalgae in the tank.

Tank Mates:

Suitable Companions: Peaceful species like clownfish, gobies, and wrasses are great tank mates. Other tangs can be kept with the Tomini Tang if introduced into the tank simultaneously to reduce territorial aggression.

Avoid: Other tangs or surgeonfish unless the tank is very large and has plenty of space.

Additional Tips:

Feeding Routine: To ensure a well-balanced diet, offer a variety of algae-based foods and supplement with occasional meaty treats.

Water Quality: The Tomini Tang thrives in clean, stable water conditions. Regular water changes and efficient filtration are key to maintaining the health of this fish.

Acclimation: Acclimate carefully and slowly, especially if introducing to a tank with existing tangs, to prevent stress and aggression.