Common name: lookdown

Scientific name: Selene vomer (Linnaeus, 1758)
Lookdown Selene vomer salt water marine fishLookdown (Selene vomer).
Close-up view of a group of Selene vomerMexican Lookdown

General information

The Lookdown, Selene vomer, is a visually striking fish known for its laterally compressed body and large, reflective scales that give it a distinctive, mirror-like appearance. This species is a member of the Carangidae family, which includes jacks and pompanos. Lookdowns are often appreciated for their unique shape and graceful swimming style, making them an interesting addition to larger marine aquariums.

Details

Recommended minimum volume
500 liter (130 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8 to 8.4
Average size
60 cm (2′)
Care level
Moderate to easy Requires open swimming space
Diet
Carnivore Prefers live foods, adaptable
Social
School Best in groups, can be skittish
Reefsafe
No May eat small fish/inverts
Aggression
Peaceful
Captive bred
No
Conservation status
ExtinctThreatenedLeastConcern

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Jacks
    Carangidae
  6. Genus
    Lookdown
    Selene
  7. Species
    lookdown
    Selene vomer (Linnaeus, 1758)
  8. Synonyms
    Zeus gallus Linnaeus, 1758
    Zeus vomer Linnaeus, 1758

Care

Lookdowns require spacious tanks due to their schooling nature and preference for swimming in open water. They are fast swimmers and need ample room to move. A diet of small fish, crustaceans, and various meaty foods is essential for their health. They are generally peaceful but may eat smaller fish and invertebrates, so tankmates should be chosen with care.

Reproduction

In the wild, Lookdowns form large schools during the spawning season. They are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs. Raising the fry can be challenging due to their specific planktonic food requirements in the early stages of life.

Habitat

Lookdowns are found in the Western Atlantic, from Canada to Brazil, including the Gulf of Mexico and the Caribbean Sea. They inhabit coastal waters, often over sandy or muddy bottoms, and can be found at depths ranging from shallow flats to over 70 meters deep.