Common name: Slender lizardfish

Scientific name: Saurida gracilis (Quoy & Gaimard, 1824)
SmilePortrait of Slender Lizardfish or Gracile lizardfish (Saurida gracilis) on sandy bottom on sunny day in sun glare, Red sea, Egypt
Gracile lizardfishGracile lizardfish (Saurida gracilis) in Red Sea

General information

The Gracile Lizardfish, scientifically known as Saurida gracilis, is a lesser-known species in the aquarium trade but can be an intriguing addition to larger marine setups. This species is part of the Synodontidae family, which is known for their elongated bodies and ambush predatory behavior. They are not commonly kept due to their size and feeding habits but can be fascinating for experienced aquarists who appreciate their unique appearance and behavior.

Details

Recommended minimum tank volume
200 liter (53 gallons)
Salinity
S.G. 1.020 to 1.025
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 Prefers sandy substrate
Diet
Carnivore Feeds on small fish and crustaceans
Social
Solo Territorial, best kept alone
Reefsafe
No May prey on small tankmates
Aggression
Semi aggresive Aggressive towards smaller fish
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
    Grinners
    Aulopiformes
  5. Family
    Lizardfish
    Synodontidae
  6. Genus
    Lizardfishes
    Saurida
  7. Species
    Slender lizardfish
    Saurida gracilis (Quoy & Gaimard, 1824)
  8. Synonyms
    Saurida gracila (Quoy & Gaimard, 1824)
    Saurida gracilata (Quoy & Gaimard, 1824)
    Saurus gracilis Quoy & Gaimard, 1824
    Saurus minutus Lesueur, 1825

Care

Gracile Lizardfish require a spacious tank with plenty of open substrate to mimic their natural environment. They are predatory fish and need a diet of live or frozen foods such as fish, shrimp, and squid. Care should be taken when housing them with smaller fish, as they may become prey. These fish are generally hardy but require stable water conditions and good water quality to thrive.

Reproduction

In the wild, lizardfish are known to scatter their eggs in open water, where they are left to develop without parental care. Breeding them in captivity is rare and not well-documented, making it a challenge for the hobbyist.

Habitat

Saurida gracilis is found in the Indo-Pacific region, from the Red Sea and East Africa to Samoa, north to southern Japan, and south to the Great Barrier Reef. They inhabit sandy and muddy bottoms of coastal waters, often burying themselves with only their eyes and mouth protruding to ambush prey.