Saltwater Fish
Zebrasoma desjardinii
Zebrasoma desjardinii
(Indian Ocean Sailfin Tang)

Species Description…

Scientific Name: Zebrasoma desjardinii
Common Name: Indian Ocean Sailfin Tang
Species Group: Surgeonfish
Habitat: Reef Safe
Care Level: Intermediate
Temperament: Semi-aggressive
Diet Type: Herbivore
Role in Aquarium: Cleanup Crew
Max Fish Length: 16 (inches)
Min Aquarium Size: 180 (gallons)
Native Range: Indian Ocean, including the Red Sea, East Africa, and the Maldives
Zebrasoma Desjardinii - Indian Ocean Sailfin Tang

Zebrasoma Desjardinii (Indian Ocean Sailfin Tang)

Overview

  • Native to the Indian Ocean and Red Sea, frequently found in lagoons, seaward reefs, and coastal reef slopes.
  • Recognized by its distinctively large dorsal and anal fins, impressive vertical stripes, and a body adorned with intricate patterns and colors.
  • An active, peaceful, yet territorial species highly prized in reef aquariums for both beauty and algae control.
  • Often seen grazing continuously on algae growth in aquariums, playing a valuable role in tank cleanliness.
  • Best suited for spacious aquariums with ample swimming room, structured rockwork, and stable water conditions.

Feeding

  • Primarily herbivorous, grazing continuously on filamentous algae and seaweed in the wild.
  • Thrives on a varied diet of seaweed sheets, spirulina, frozen herbivore mixes, and algae-based pellets.
  • Requires regular feedings multiple times daily to support its continuous grazing habits and nutritional needs.
  • Occasionally accepts meaty foods such as mysis shrimp and brine shrimp, though these should supplement, not replace, a predominantly plant-based diet.
  • A diet rich in algae and marine greens supports vibrant coloration, health, and longevity.

Habitat

  • Typically inhabits coral-rich reef environments with plenty of algae-covered rocks and robust water flow.
  • Frequently observed in areas with coral rubble and extensive growths of marine algae.
  • Aquarium setups should include ample live rock structures to support natural algae growth and provide hiding spots.
  • Requires excellent water quality, strong filtration, and consistent, stable environmental parameters.
  • Providing open swimming space and abundant grazing surfaces encourages natural behavior and reduces stress.

Fish Care

  • Optimal water temperature: 74-80°F (23-27°C), essential for metabolic health and immune function.
  • Preferred pH range: 8.1-8.4, with a salinity level of 1.020-1.025.
  • Regular water changes, rigorous filtration, and water parameter monitoring are crucial for maintaining pristine water quality.
  • Generally reef-safe, though occasional nipping at certain soft corals may occur if algae supply is inadequate.
  • Providing consistent algae growth or supplemental seaweed sheets greatly reduces undesirable behaviors.

Compatibility

  • Peaceful with non-related species but can be territorial and aggressive toward other tangs or similar-bodied fish.
  • Compatible with angelfish, clownfish, wrasses, and other peaceful community fish of varying sizes.
  • Should be introduced cautiously into tanks housing other tang species to minimize aggression.
  • Thrives best in community aquariums with ample space to minimize territorial disputes.
  • Providing plenty of hiding areas and ample swimming room helps maintain harmony and reduce aggression.

Aquarium Behavior

  • An active swimmer, continuously grazing and exploring throughout the day.
  • Frequently observed using its extended fins in impressive displays when interacting with tankmates or asserting territory.
  • Initially cautious but quickly becomes bold and visible once acclimated to its surroundings.
  • Providing a well-structured environment with abundant algae encourages natural grazing behaviors.
  • Over time, often recognizes and responds enthusiastically to its caretaker, especially during feeding sessions.