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Bicolor Blenny
BeginnerEcsenius bicolor
Bicolor with brown front and orange rear. Humorous algae-grazing behavior on rocks. Expressive face makes it popular.
Difficulty
Beginner
Temperature
23〜26℃
Lifespan
3-6 years
Size
8-10cm
Diet
Algae, pellet food
About
Blennies are a broad group of small, bottom-dwelling fishes belonging primarily to the family Blenniidae, found across shallow coastal waters and coral reefs worldwide. Recognizable by their large expressive eyes, worm-like undulating movement, and habit of tucking into rock crevices or sandy burrows, they have a devoted following among marine aquarists. The bicolor blenny (Ecsenius bicolor), one of the most popular species in the hobby, displays a striking two-tone pattern of deep blue anteriorly and vivid orange posteriorly. Predominantly herbivorous, it grazes algae from tank walls, substrate, and live rock, earning a useful role as a natural cleaner. A 60-litre or larger aquarium with rock caves or shelter structures is recommended for optimal well-being.
Source: Wikipedia (CC BY-SA 4.0)
Basic Info
Origin
Shallow coastal waters and coral reefs worldwide, primarily in the Indo-Pacific
Lifespan
3-6 years
Size
8-10cm
Temperature
23〜26℃
Diet
Algae, pellet food
Care Guide
Tank
60L+
Role
Care Specifications
- pH
- 8.1–8.4
- Water Temp.
- 22–26℃
- Specific Gravity
- 1.02–1.025
- Salinity
- 33–35 ppt
- Min. Tank
- 114 L
PeacefulWith caution
Sources: LiveAquaria
References & Sources
Edited & verified by: br-choku editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Taxonomy & Authority
Regulations & Conservation Status
Not CITES-listed
Sources: CITES Appendices (species not listed) / 環境省 特定動物リスト / 環境省 特定外来生物等一覧
Regulations may change. Always verify the latest information with the relevant authorities.
Bicolor Blenny Listings
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