Common name: smoothlipped blenny

Scientific name: Istiblennius edentulus (Forster & Schneider, 1801)

General information

The Rockskipper Blenny, scientifically known as Istiblennius edentulus, is a charming and active fish species popular among reef aquarium enthusiasts. This species is known for its unique behavior of skipping across rocks and perching on high vantage points within the tank. They have a distinctive appearance with mottled patterns that blend well with the reef environment.

Details

Recommended minimum tank volume
75 liter (20 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
12 cm (5″)
Care level
Moderate to easy
Diet
Herbivore
Social
Solo
Reefsafe
Yes
Aggression
Semi aggresive
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Blennies
    Blenniidae
  6. Genus
    Rockskipper Blennies
    Istiblennius
  7. Species
    smoothlipped blenny
    Istiblennius edentulus (Forster & Schneider, 1801)
  8. Synonyms
    Alticops edentulus (Forster & Schneider, 1801)
    Blennius cinereus Castelnau, 1875
    Blennius edentulus Forster & Schneider, 1801
    Blennius truncatus Forster, 1801
    Istiblennius edentululus (Forster & Schneider, 1801)
    Istiblennius enoshimae (Jordan & Snyder, 1902)
    Istiblennius enosimae (Jordan & Snyder, 1902)
    Istilbennius edentulus (Forster & Schneider, 1801)
    Salarias atratus Macleay, 1882
    Salarias atrimarginatus Fowler, 1946
    Salarias azureus Seale, 1906
    Salarias diproktopterus Bleeker, 1857
    Salarias fluctatus Fowler, 1945
    Salarias garmani Jordan & Seale, 1906
    Salarias gilberti Bryan & Herre, 1903
    Salarias insulae Ogilby, 1899
    Salarias marcusi Bryan & Herre, 1903
    Salarias melanocephalus Bleeker, 1849
    Salarias quadricornis Valenciennes, 1836
    Salarias quadricornis coloratus Klunzinger, 1871

Care

Rockskipper Blennies are hardy and adaptable, making them suitable for both novice and experienced aquarists. They thrive in tanks with plenty of live rock and crevices for hiding and grazing on algae. These blennies are herbivores and require a diet rich in marine algae and vegetable matter to maintain their health and coloration.

Reproduction

In the wild, Rockskipper Blennies are known to lay eggs in crevices or under rocks. In the aquarium, breeding is less common, but with a well-established environment and a pair, hobbyists may observe spawning behavior. The male typically guards the nest until the eggs hatch.

Habitat

Istiblennius edentulus is found in shallow, coastal waters and tide pools, often in areas with strong surge and wave action. They are adept at clinging to rocks and can often be seen out of the water during low tide. Their natural range extends across the Indo-Pacific region, from the eastern coast of Africa to the islands of the central Pacific.