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The Tomini Tang (Ctenochaetus tominiensis) is a popular marine fish species in the aquarium hobby, known for its striking appearance and algae-eating behavior. Here are some details:


  • Average Size: 5-6 inches
  • Max Size: Up to 6 inches
  • Tank Size Required: Suitable for larger marine aquariums; a tank size of at least 70 gallons is recommended.


Temperament: Tomini Tangs are generally peaceful, but as with many tangs, they can become territorial, especially towards other tangs or fish with similar body shapes.


Unique Traits: Known for their vibrant coloration, Tomini Tangs have a distinctive appearance with a yellow to golden body, a white or silver belly, and a prominent dark eye-stripe.


Origin: Indigenous to the Indo-Pacific region, including areas like the Philippines and Indonesia, Tomini Tangs inhabit coral-rich environments.


Other Names:

  • Ctenochaetus tominiensis
  • Tomini Surgeonfish


Care Level: Moderate


Diet: Tomini Tangs are herbivores and graze on algae. In captivity, it's essential to provide a diet rich in vegetable matter. They can be fed high-quality marine flakes, pellets, and a variety of marine algae, such as dried seaweed or nori.


Characteristics and Looks: The Tomini Tang has an oval-shaped body with a single, small dorsal fin. It's characterized by its vibrant yellow-gold coloration, a dark eye-stripe, and a tail fin with a trailing filament.


Water Parameters:

  • pH: 8.1-8.4
  • Salinity: 1.023-1.025
  • Temperature: 72-78°F


Disclaimer: "Please note that these are general guidelines, and for more accurate values, we encourage you to contact Living Aquarium by phone or in person. Within store hours, our team of experts is always happy to answer any questions you may have and provide personalized guidance on care."

Tomini Tang

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