Common name: Elongate Unicornfish

Scientific name: Naso lopezi Herre, 1927

General Information

The Elongate Unicornfish, scientifically known as Naso lopezi, is a striking marine fish known for its elongated body. This species is a part of the surgeonfish family, Acanthuridae, and is admired for its unique appearance and active swimming behavior. Unlike some of its more colorful relatives, Elongate Unicornfish sports a more subdued color palette, primarily consisting of grays and blues, which gives it an elegant and sophisticated look.

In the aquarium trade, Naso lopezi is appreciated for its peaceful nature and ability to adapt to a community tank setting. It is suitable for larger aquariums due to its potential size and active swimming needs. This species is not as commonly kept as other tangs, making it a unique addition for enthusiasts looking to diversify their collections.

Details

Estimated price
Moderate
Recommended minimum tank volume
500 liter (130 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8 to 8.5
Average size
50 cm (1′8″)
Care level
Moderate to easy
Diet
Herbivore Primarily grazes on algae, supplement with herbivore pellets
Social
Solo Best kept solo due to potential territorial behavior
Reefsafe
Yes
Aggression
Peaceful Peaceful but can be territorial with other tangs
Captive bred
No
IUCN Red List
EX
EW
CR
EN
VU
NT
LC

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
    Unicornfish
    Naso
  7. Species
    Elongate Unicornfish
    Naso lopezi Herre, 1927
  8. Source: GBIF | Global Biodiversity Information Facility

Care

Elongate Unicornfish requires a spacious tank with ample swimming space, ideally with a volume of at least 500 liters. They thrive in aquariums that mimic their natural reef habitat, complete with live rock and open areas for swimming. While they are generally hardy, maintaining stable water conditions is crucial for their health.

Diet and Feeding

In the wild, Naso lopezi primarily grazes on algae, making it an excellent choice for controlling algae growth in the aquarium. In captivity, they should be provided with a varied diet consisting of marine-based algae, spirulina, and high-quality herbivore pellets. Supplementing their diet with occasional meaty foods like mysis shrimp can help ensure balanced nutrition.

Feed them small amounts multiple times a day to mimic their natural grazing habits. This approach helps maintain their energy levels and supports their active lifestyle.

Behavior and Compatibility

Known for its peaceful temperament, Elongate Unicornfish is generally compatible with a variety of tank mates, including other peaceful fish species. However, they can become territorial towards other tangs, especially if space is limited. Providing a large tank can help mitigate potential aggression.

Symbiosis

While Naso lopezi does not form symbiotic relationships like clownfish with anemones, its role in the aquarium can be seen as beneficial due to its algae-eating habits, which help maintain a clean tank environment.

Health and Common Issues

Elongate Unicornfish is susceptible to common marine diseases such as ich and marine velvet. Quarantining new additions and maintaining high water quality are essential preventive measures. Regular monitoring for signs of stress or disease will help ensure early detection and treatment.

Habitat

Naso lopezi is native to the coral reefs of the Indo-Pacific region. They are typically found at depths ranging from 5 to 30 meters, where they graze on algae-covered substrates. Their natural habitat is characterized by clear, warm waters and abundant coral formations, which provide both food and shelter.