Overview
The Bicolor Blenny (Ecsenius bicolor) is a beginner saltwater species known for its brown (front), orange (rear) coloration. Half brown / half orange. Surfaces.
Origin & Appearance
Origin: Indo-Pacific.
Colors: Brown (front), Orange (rear).
Body Shape: Elongate (long/slender). Typical adult dimensions: 11.0 x 1.3 x 1.6.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 30 gallons |
| Temperature | 75–79°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | low |
| Oxygen Demand | medium |
| Plant Safe | yes |
| Aquarium Position | Surfaces |
Behavior & Activity
Reef percher; sits on rocks peering around; quick hops between perching spots; comical head-bobbing
Speed: 30/100Aggression: 3/10diurnal
Breeding
Moderate; egg depositor
Common Diseases
💊 Ich
Expert Notes
Half brown / half orange