🐠 Bicolor Dottyback (Pseudochromis paccagnellae)
🐠 Bicolor Dottyback (Pseudochromis paccagnellae)
A Bold Purple-to-Pink Front, Vivid Yellow Rear • A Confident Cave Dweller • Hardy, Easy and Full of Personality
📋 The Bicolor Dottyback, also known as the Royal Dottyback, is a small but strikingly coloured marine fish with a bold purple-to-pink front half and a vivid yellow rear half, a pattern often confused with the Royal Gramma at a glance, though the two are unrelated.
It comes from reefs across the Central Indo-Pacific, where it lives among rock and coral rubble, claiming a burrow or crevice as its home base. Every Bicolor Dottyback we ship is feeding well, and it's a hardy, easy-to-keep fish.
It's a confident, territorial character that defends its home with real conviction, so choose assertive tankmates that can hold their own, and add it as one of your last fish to an established community. It's reef safe with corals, but it will eat small ornamental shrimp, so plan your clean-up crew with that in mind. It reaches up to 8cm, so a 115L tank suits it well.
💡 Highlights
🎨 Bold Purple and Yellow: A striking, sharply divided two-tone pattern
💪 Hardy and Easy to Keep: A popular beginner's dottyback
🧠 Confident and Characterful: Claims a cave and defends it with real conviction
🦐 Will Eat Small Shrimp: Plan your clean-up crew accordingly
🌿 Reef Safe: Won't harm corals
🧾 A Quick Look at the Bicolor Dottyback
📛 Common Name: Bicolor Dottyback (Royal Dottyback, False Gramma)
🔬 Scientific Name: Pseudochromis paccagnellae
👨👩👧 Family: Pseudochromidae
🌍 Origin: Central Indo-Pacific
📏 Max Size: Up to 8cm (≈ 3")
🧂 Specific Gravity: 1.020-1.025
🌡️ Temperature Range: 22-26°C (72-78°F)
🧠 Care Level: Easy; choose tankmates with its confident nature in mind
💖 Temperament: Aggressive; territorial and confident for its size
🌿 Reef Safe: Yes toward corals; will eat small ornamental shrimp
🏠 Min Tank Size: 115 L (≈ 30 gallons)
📌 Tank Level: Lower to mid level; rock and cave dweller
🧬 Stock Type: Wild-collected as standard stock; captive-bred available from some breeders
⏳ Lifespan: 4-6 years
🍽️ Diet: Carnivore (small crustaceans, amphipods, bristleworms)
🐣 Reproduction: Protogynous hermaphrodite; egg layer, occasionally bred in captivity

















