Common name: Rock-pool blenny

Scientific name: Parablennius parvicornis (Valenciennes, 1836)
Rock pool blenny (Parablennius parvicornis) in tide pool in Gran Canaria, SpainPareja de peces Barriguda de los charcos
Rock pool Blenny (Parablennius parvicornis) underwater tide pool photography in Gran CanariaRock pool blenny (Parablennius parvicornis) underwater photo in Gran Canaria, Canary Islands

General information

The Small Corn Blenny, Parablennius parvicornis, is a charming and distinctive species known for its unique appearance and behavior. This species is characterized by its small size, cryptic coloration, and the horn-like cirri above its eyes, which give it a whimsical look. They are not as commonly found in the aquarium trade as some other blennies, but they can make a fascinating addition to a reef or fish-only aquarium.

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 to 8.4
Average size
12 cm (5″)
Care level
Moderate to easy
Diet
Omnivore
Social
Solo
Reefsafe
Yes
Aggression
Semi aggresive May nip at small inverts
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
    Blennies
    Parablennius
  7. Species
    Rock-pool blenny
    Parablennius parvicornis (Valenciennes, 1836)
  8. Synonyms
    Blennius bouvieri Rochebrune, 1880
    Blennius canariensis Jordan & Gunn, 1898
    Blennius parvicornis Valenciennes, 1836
    Blennius parvicornis sinuata Lowe, 1843
    Blennius parvicornis strigata Lowe, 1843
    Pictiblennius parvicornis (Valenciennes, 1836)

Care

Small Corn Blennies are hardy and adaptable, making them suitable for both novice and experienced aquarists. They thrive in aquariums with plenty of live rock and crevices for hiding. These blennies are herbivorous, feeding primarily on algae, so it's important to maintain a healthy growth of macroalgae or provide them with a diet that includes marine algae and vegetable-based foods.

Reproduction

In the wild, Small Corn Blennies are known to lay their eggs in crevices or under ledges. In the aquarium, they may spawn if they are kept in a well-established system with a suitable mate. The male typically guards the eggs until they hatch.

Habitat

Parablennius parvicornis is found in shallow, rocky coastal areas and tide pools. They are adept at blending into their surroundings, which helps them avoid predators. Their natural range extends across the Eastern Atlantic, from the British Isles to Senegal, including the Mediterranean and the Black Sea.