Canary Blenny - Meiacanthus oualanensis
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The Canary Blenny (Meiacanthus oualanensis), also known as the Yellow Fang Blenny, is a slender and active reef fish admired for its bright yellow coloration and peaceful nature. Unlike many blennies, this species is a planktivore and spends much of its time swimming in the open water column.
Common Name: Canary Blenny, Yellow Fang Blenny
Scientific Name: Meiacanthus oualanensis
Family: Blenniidae
Size: Up to 5 inches (12.5 cm)
Temperament: Peaceful
Difficulty: Easy to Moderate
Reef Safe: Yes
Native Region: Found throughout the Indo-Pacific, including the Red Sea, Indonesia, and the Great Barrier Reef, typically inhabiting reef slopes and lagoons.
Tank Size: Minimum of 30 gallons
Temperature: 74–80°F (23–27°C)
pH: 8.0–8.4
Salinity: 1.023–1.025
Substrate/Decor: Live rock with crevices for shelter; provide open swimming space and moderate water flow.
• Diet: Carnivorous planktivore—feeds readily on mysis shrimp, brine shrimp, finely chopped seafood, and high-quality frozen foods.
• Behavior: Peaceful and active; possesses small venomous fangs used defensively, which generally deter aggression from other fish.
• Tankmates: Compatible with most peaceful to semi-aggressive reef fish; avoid housing with overly aggressive species.
• Care Notes: A secure lid is recommended, as this species may jump when startled.