Possum Wrasse
A tiny, secretive wrasse — the "yellow-banded possum" — that maxes out around 8 cm and spends much of its day tucked in caves and overhangs, darting out to snatch pods and micro-crustaceans. It is utterly peaceful and coral-safe, small enough for a nano, and a lovely subject for a cryptic-zone or refugium-fed reef, though its shyness means it can be outcompeted at feeding time by bolder fish. It may take very small ornamental shrimp, and like all wrasses benefits from a covered tank.
Tankmates
How Possum Wrasse gets on with the rest of the reef, checked pair by pair by the same engine as the live pre-flight.
Best kept apart
A real clash — aggression, predation or a same-genus fight.
Keep an eye on these
Usually fine, but worth watching in a smaller tank.
Good tankmates
No conflicts — a few popular ones to start with.
