Common name: Striated Surgeonfish

Scientific name: Ctenochaetus striatus (Quoy & Gaimard, 1825)

General Information

The Striated Surgeonfish, scientifically known as Ctenochaetus striatus, is a popular addition to marine aquariums due to its unique appearance and beneficial algae-eating habits. This species is characterized by its elongated body, adorned with fine horizontal lines that give it a striated appearance, hence the name. The coloration typically ranges from grayish-brown to olive, often with a slight blue hue, making it an attractive yet understated presence in a reef tank.

Known for its role as a "cleaner fish," the Striated Surgeonfish plays a significant part in maintaining the ecological balance within aquariums by grazing on algae. This not only helps in keeping the tank clean but also supports the health of coral reefs in natural settings, as it prevents algae from overgrowing and suffocating corals.

Details

Estimated price
Moderate
Recommended minimum tank volume
300 liter (79 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8 to 8.4
Average size
25 cm (10″)
Care level
Moderate to easy Requires ample space and live rock for grazing
Diet
Herbivore Primarily feeds on algae and detritus; supplement with marine algae
Social
Solo Best kept solo due to territorial nature with similar species
Reefsafe
Yes
Aggression
Semi aggresive Territorial towards similar species, especially other tangs
Captive bred
No
Conservation statusSource: IUCN Red List
ExtinctThreatenedLeastConcern

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Surgeonfish
    Acanthuridae
  6. Genus
    Bristletooth Tangs
    Ctenochaetus
  7. Species
    Striated Surgeonfish
    Ctenochaetus striatus (Quoy & Gaimard, 1825)
  8. Synonyms
    Acanthurus argenteus Quoy & Gaimard, 1825
    Acanthurus ctenodon Valenciennes, 1835
    Acanthurus flavoguttatus Kittlitz, 1834
    Acanthurus ketlitzii Valenciennes, 1835
    Acanthurus striatus Quoy & Gaimard, 1825
    Acronurus argenteus (Quoy & Gaimard, 1825)
    Ctenochaetus argenteus (Quoy & Gaimard, 1825)
    Ctenodon ctenodon (Valenciennes, 1835)
    Ctenodon cuvierii Swainson, 1839
  9. Source: GBIF | Global Biodiversity Information Facility

Care

The Striated Surgeonfish is relatively easy to care for, making it suitable for aquarists with some experience in keeping marine species. It requires a well-established tank with plenty of live rock to graze on. These fish are active swimmers and need ample space to roam, so a larger aquarium is recommended. They thrive in stable water conditions with good filtration and regular maintenance.

To mimic their natural environment, incorporate plenty of live rock and ensure moderate water flow. This setup not only provides grazing opportunities but also creates hiding spots, helping to reduce stress and promote natural behaviors.

Diet and Feeding

In the wild, Striated Surgeonfish primarily feed on algae and detritus, making them excellent candidates for controlling algae growth in aquariums. In captivity, their diet should be supplemented with high-quality marine algae, spirulina, and other plant-based foods. Offering a variety of foods ensures they receive all necessary nutrients and helps prevent nutritional deficiencies.

Feed them small portions several times a day to mimic their natural grazing behavior. This frequent feeding schedule supports their digestive health and keeps them active.

Behavior and Compatibility

Striated Surgeonfish are generally peaceful but can exhibit territorial behavior, especially towards other tangs or similarly shaped fish. They are best kept as the only tang in smaller aquariums to avoid aggression. In larger tanks, they can coexist with other peaceful species.

These fish are not toxic and pose no safety concerns to other tank inhabitants. However, their territorial nature means they should be monitored when introducing new tank mates.

Reproduction

Breeding the Striated Surgeonfish in captivity is challenging and rarely achieved. They are broadcast spawners in the wild, releasing eggs and sperm into the water column where fertilization occurs. Successful breeding requires large tanks and specific conditions that are difficult to replicate in home aquariums.

Health and Common Issues

With proper care, Striated Surgeonfish can live several years in captivity. They are generally hardy but can be susceptible to common marine diseases such as ich. Maintaining high water quality and a balanced diet are essential to their health. Quarantine new fish and monitor for signs of stress or illness to prevent outbreaks.

Habitat

Striated Surgeonfish are native to the Indo-Pacific region, where they inhabit coral reefs and lagoons. They are typically found at depths ranging from 1 to 30 meters. Their natural habitat features abundant algae and detritus, which they graze on throughout the day. In captivity, replicating these conditions with live rock and stable water parameters is key to their well-being.