Tomini Tang - Ctenochaetus tomini
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The Tomini Tang (Ctenochaetus tomini) is a visually striking tang known for its brown-gray body contrasted by a bright white tail and orange-rimmed dorsal and anal fins. This active grazer adds dynamic movement and color to reef aquariums.
Common Name: Tomini Tang
Scientific Name: Ctenochaetus tomini
Family: Acanthuridae
Size: Up to 6 inches (15 cm)
Temperament: Semi-aggressive
Difficulty: Moderate
Native Region: Found throughout the western Pacific, particularly around Indonesia and the Philippines, inhabiting reef flats and lagoon areas rich in algae.
Reef Safe: Yes
Tank Size: Minimum of 75 gallons
Temperature: 72–78°F (22–26°C)
pH: 8.1–8.4
Salinity: 1.023–1.025
Substrate: Provide live rock with algae-covered surfaces for grazing.
• Algae Control: Actively grazes on film algae and detritus.
• Behavior: May be territorial toward other tangs; best kept with non-aggressive species.
• Diet: Herbivorous—supplement natural grazing with marine algae sheets or spirulina-based foods.
• Tankmates: Compatible with most peaceful reef fish; avoid other tangs of similar size if the tank is small.
