🐠 Hancock's Blenny (Meiacanthus hancocki)
🐠 Hancock's Blenny (Meiacanthus hancocki)
Marine Fish • Reef-Safe • Fang Blenny • Nano-Community Species
📋 The Hancock's Blenny (Meiacanthus hancocki) is a small, brightly coloured fang blenny known for its vivid yellow body and electric blue stripe that runs from the mouth to tail. Despite its venomous fangs, this species is entirely peaceful and reef-safe, relying on its venom only for defense.
Active and curious, it spends its time gliding gracefully through open water and hovering near rockwork. Because of its size, colour, and gentle nature, it’s a popular choice for nano to medium reef systems.
💡 Highlights
✨ Bright Colouration: Yellow body with vivid blue stripe
⚪ Peaceful Reef Fish: Compatible with most tankmates
📏 Compact Size: Perfect for nano or community reef tanks
✅ Captive Bred Hardiness: Readily adapts to prepared foods
🐠 Unique Fang Blenny: Mild defensive venom, adds interest
🧾 A Quick Look at the Hancock’s Blenny
📛 Common Name: Hancock’s Blenny
🔬 Scientific Name: Meiacanthus hancocki
👨👩👧 Family: Blenniidae
🌍 Origin: Western Pacific — Indonesia, Papua New Guinea, Philippines
📏 Max Size: 9 cm (≈ 3.5″)
💧 pH Range: 8.1 – 8.4
🌡️ Temperature Range: 24 – 28 °C (≈ 75 – 82 °F)
🧠 Care Level: Easy to Intermediate
💖 Temperament: Peaceful community species
🪸 Reef Safe: ✅ Yes
🏠 Min Tank Size: 75 L (≈ 20 US gallons)
📌 Tank Level: Mid to upper water column
🧬 Captive Bred: ❌ No
🌿 Wild Caught: ✅ Yes
⏳ Lifespan: 4 – 6 years
🍽️ Diet: Carnivore – zooplankton, mysis, brine shrimp
🐣 Reproduction: Egg-layer; male guards nest

















