Common name: seaweed blenny
General information
The Seaweed Blenny, scientifically known as Parablennius marmoreus, is a small, characterful fish that is well-suited to the marine aquarium. This species is known for its distinctive marbled pattern and its curious behavior. It is a benthic fish, meaning it spends most of its time near the bottom of the tank, often perched on rocks or coral.
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
- 13 cm (5″)
- Care level
- Moderate to easy Prefers rockwork with hiding spots
- Diet
- Omnivore Varied diet; accepts flakes and frozen food
- Social
- Solo Can be territorial; best kept alone
- Reefsafe
- Yes
- Aggression
- Semi aggresive May nip at slow-moving fish
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderPerch-like FishesPerciformes
- FamilyBlenniesBlenniidae
- GenusBlenniesParablennius
- Speciesseaweed blennyParablennius marmoreus (Poey, 1876)
- SynonymsBlennius marmoreus Poey, 1876Blennius mormoreus Poey, 1876
Care
Seaweed Blennies are relatively easy to care for, making them a good choice for both beginner and experienced aquarists. They require an aquarium with plenty of live rock for perching and hiding. These blennies are herbivores, and their diet should consist mainly of marine algae and vegetable matter, supplemented with high-quality prepared foods.
Reproduction
In the wild, Seaweed Blennies are oviparous, with males guarding and aerating the eggs until they hatch. Breeding them in captivity can be challenging, but with the right environment and care, it is possible to encourage spawning.
Habitat
Parablennius marmoreus is found in shallow, rocky coastal waters and is often associated with algal growth. They are native to the Eastern Atlantic, from the British Isles to Senegal, including the Mediterranean and Black Seas.