Desjardini Sailfin Tang - Zebrasoma desjardini
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The Sailfin Tang (Zebrasoma desjardini) is a bold and striking surgeonfish known for its tall, sail-like dorsal and anal fins and intricate striped patterning. Juveniles display finer vertical banding, while adults develop broader stripes and impressive fin extensions, making this species a commanding centerpiece in large marine aquariums.
Common Name: Sailfin Tang
Scientific Name: Zebrasoma desjardini
Family: Acanthuridae
Size: Up to 15 inches (38 cm)
Temperament: Semi-aggressive
Difficulty: Moderate
Native Region: Found throughout the Red Sea and western Indo-Pacific, inhabiting coral-rich lagoons and outer reef slopes.
Reef Safe: Yes
Tank Size: Minimum of 180 gallons
Temperature: 74–80°F (23–27°C)
pH: 8.0–8.4
Salinity: 1.023–1.025
Substrate: Live rock with ample swimming space; provide caves and rockwork for grazing and security.
• Diet: Primarily herbivorous—offer dried nori, algae sheets, and spirulina-based foods; supplement with frozen foods for variety.
• Behavior: Can be territorial toward other tangs, especially similar-shaped species; best added last.
• Growth: Rapid growth when well-fed—plan long-term tank size accordingly.
• Health: Prone to marine ich if stressed; stable water quality and a varied diet are essential.