rusty blenny

Scientific name Parablennius sanguinolentus
Descriptor Pallas
Year of description 1814
IUCN category LC
Family Blenniidae
Genus Parablennius
Parablennius sanguinolentus Parablennius sanguinolentus


Parablennius sanguinolentus, commonly known as rusty blenny, is a salt water fish.

Who is it?


  • Average size
    13 cm
  • Maximum size
    20 cm
  • Shape
  • Mimicry
  • Average size
    13 cm
  • Maximum size
    20 cm
  • Shape
  • Mimicry

How to recognize the rusty blenny ?

The rusty blenny measures between 13 and 20 cm. This fish is multicolore with a predominantly marron and beige body.

Behaviour & Life cycle

  • diet
  • Sociability
  • territorial
  • Way of living

The rusty blenny is a fish solitary naturally found in the vegetation. This species is herbivorous .

In a constant quest for dominance, the dominant males of this species cannot stand each other. The battle between two individuals can be intense and violent. It will result in the submission and sometimes even death of one of the protagonists.


  • Reproduction
    ovipare qui pond sur substrat caché

The rusty blenny is a fish ovipare qui pond sur substrat caché.

Harmless species

This species does not represent any particular threats to humans when encountered in its natural environment.

Where to find it?

What is its habitat?

Natural environment characteristics

  • Depth
    0 - 5 m

Biotope presentation

The rusty blenny is most often found at a depth between 0m and 5m. However, it is not impossible to find this species at other depths.

Species of the same biotope


Not recommended

We do not recommend keeping this species in an aquarium. It has unpredictable needs which, if not met, generate significant stress, potentially leading to a shorter life expectancy, an interruption of its growth or the development of pathogens.

To go further

Species of the same family

To read on the web

Sources & Contributions

Participation & Validation

The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.

Adrien Falzon

Adrien Falzon

Benoit Chartrer

Benoit Chartrer


Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.

Interact with Fishipedia

To get in touch with our team or participate in our project.

Template and content © Fishipedia - Unauthorized reproduction without prior request - ISSN 2270-7247 - Last modification 12/11/2023

Species of the same family

Same genus

Species of the same biotope

Scientific partners

  • {{name}}

    {{#street_number}}{{street_number}}, {{/street_number}}{{#route}}{{route}}{{/route}}
    {{postal_code}} {{town}}