Striatus Tang Ctenochaetus striatus

Striatus Tang

The Striatus Tang is a constant grazer known for its fine horizontal striping and active reef behavior. In particular, this species spends most of its time picking at film algae and detritus, making it a practical addition to established marine aquariums with mature rockwork.

In its natural habitat, the Striatus Tang is found throughout the Indo-Pacific. As a result, it thrives in aquariums with stable water conditions, moderate to strong flow, and plenty of swimming space. Additionally, it adapts well when introduced to established systems and benefits from environments that support natural grazing.

Striatus Tang Care Facts & Stats

• Care Level: Moderate
• Temperament: Semi-aggressive
• Color: Brown, Tan, Yellow, Orange, and White
• Diet: Herbivore
• Reef Compatible: Yes
• Origin: Indo-Pacific Ocean
• Acclimation Time: 2+ hours
• Minimum Tank Size: 150 gallons
• Max Size: Up to 10 inches
• Typical Adult Size: 6–8 inches
• Family: Acanthuridae
• Scientific Name: Ctenochaetus striatus

Natural Behavior & Aquarium Role of the Striatus Tang

The Striatus Tang is a member of the bristletooth tang group, known for specialized mouthparts that allow it to scrape algae from rock surfaces. Because of this, it plays a functional role in reef aquariums by helping control film algae and maintaining cleaner surfaces across live rock and substrate. Over time, this natural grazing behavior contributes to a more balanced aquarium environment.

Feeding the Striatus Tang

A consistent herbivore diet is essential for long-term health. To maintain proper nutrition, provide a variety of marine-based algae, including seaweed sheets and spirulina-rich foods. In addition, supplemental feedings of high-quality pellets and frozen foods can help support overall health while reducing territorial behavior.

Tank Setup & Compatibility

This species requires a larger aquarium with open swimming space and established rockwork for grazing. While generally manageable, the Striatus may show aggression toward other tangs or similarly shaped fish. For this reason, introduce tankmates carefully and avoid overcrowding with other herbivores.

Approximate Purchase Size

• Small: Under 2.25 inches
• Medium: 2.25 to 3 inches
• Large: 3.5 to 4.75 inches
• XL: 2.25 to 3.5 inches