🐠 Mimic Eibli Tang (Acanthurus tristis)
A Juvenile That Closely Mimics Eibli's Angelfish • An Olive-Grey Adult With a Lyre-Shaped Tail • A Fascinating Natural Mimic
 
📋 The Mimic Eibli Tang, also known as the Indian Ocean Mimic Tang, has a remarkable natural history. As a juvenile, it displays an almost identical appearance to the Eibli's Angelfish (Centropyge eibli), matching the orange vertical stripes, orange breast and eye-ring, and even the black tail with its bright blue edge, so closely that even experienced hobbyists can struggle to tell them apart. It's a real example of Batesian mimicry, where the tang evolved to resemble a less palatable angelfish species to reduce its own risk of predation while young and vulnerable.
It comes from reefs and lagoons across the Indian Ocean, particularly around the Maldives, undergoing a transformation between 3 to 5 months of age, gradually losing its angelfish disguise and settling into an adult olive-to-grey body with a lyre-shaped tail edged in white. Every Mimic Eibli Tang we ship is feeding well.
It's a valuable algae grazer for a reef tank, and it generally doesn't conflict with unrelated tankmates. It is, however, aggressive toward other tangs and surgeonfish, especially those of similar shape or colour, and should be the only one of its kind except in very large systems. It's reef safe, though it may occasionally nip at LPS corals. It reaches up to 25cm, so plan on at least 475L.
 
💡 Highlights
🎭 A Remarkable Juvenile Mimic: A well-documented case of Batesian mimicry
🔄 A Dramatic Transformation: Loses its angelfish disguise between 3-5 months of age
🌿 Reef Safe: May occasionally nip at LPS corals
🥬 A Valuable Algae Grazer: A real asset for controlling nuisance algae
🍽️ Ships Feeding Well: A confident grazer from day one