Bicolor Blenny (Ecsenius bicolor)

Vibrant Reef-Friendly Algae Eater

The Bicolor Blenny is a hardy, reef-safe marine fish featuring a striking two-tone body—typically a bright yellow front half and dark rear half. This small but active blenny is perfect for nano and standard marine aquariums, keeping algae growth under control while adding personality and movement to your tank.

Known for its curious and entertaining behaviour, the Bicolor Blenny often perches on rocks, exploring its surroundings with its engaging antics.

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Key Features

• Distinctive two-tone body: yellow front, dark rear
• Active and engaging personality
• Excellent algae eater for marine aquariums
• Reef safe and hardy—beginner-friendly
• Small size, ideal for nano and standard tanks

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Care Requirements

Parameter	Recommendation
Scientific Name	Ecsenius bicolor
Common Name	Bicolor Blenny
Adult Size	~7–8 cm
Temperament	Peaceful
Reef Compatibility	Reef safe
Minimum Tank Size	60L+
Diet	Omnivorous – algae, spirulina, marine flakes, frozen foods
Origin	Indo-Pacific