Description
Bicolor Blenny – Ecsenius bicolor Common name: Bicolor Blenny Scientific name: Ecsenius bicolor Origin: Indo-Pacific Adult size: Up to 10 cm Temperament: Semi-aggressive / territorial Diet: Omnivore (algae & small invertebrates) Minimum tank size: 110 L+ Reef safe: Yes — Overview The Bicolor Blenny (Ecsenius bicolor) is a visually striking reef fish featuring a bold contrast of deep blue on the front half of its body and vibrant orange toward the rear. With its curious personality and constant perching behavior, it quickly becomes a character fish in reef aquariums. — Habitat & Tank Requirements Thrives in established aquariums with: • Extensive live rock for grazing and hiding • Moderate water flow • Stable water parameters Recommended parameters: • Temperature: 22–26°C • pH: 8.1–8.3 • Specific gravity: 1.020–1.025 Reliable filtration and regular partial water changes are essential for long-term health. — Behavior & Compatibility Naturally territorial, especially toward other blennies or similar-shaped fish. Best kept singly unless housed in a significantly larger system with ample rockwork. Generally peaceful toward dissimilar tankmates and reef safe. — Feeding A natural forager that consumes: • Microalgae • Copepods and small crustaceans Supplement with: • High-quality marine pellets • Spirulina-based foods • Frozen mysis or brine shrimp Providing algae-based foods helps support digestive health. — Why Choose a Bicolor Blenny? • Hardy and adaptable once established • Natural algae grazer • Engaging, perch-and-watch behavior • Distinctive two-tone coloration An excellent choice for reef aquarists seeking a hardy, personality-rich fish that contributes both visual appeal and practical algae control.
