Christmas Wrasse
A green, elongate Halichoeres with pink-to-orange lattice striping and a black eyespot in the dorsal fin — split off from the Hawaiian H. ornatissimus in 2009 and now the fish sold as Christmas Wrasse in most of the trade. It is a constant, restless swimmer that patrols the rockwork all day and dives into the sand bed to sleep, so it needs an open sand bottom of at least 5 cm, not a bare-bottom or plumbed-full tank. Useful as a pest hunter — it eats fireworms and pyramid snails — but the same appetite means ornamental shrimp, feather dusters and small snails are at risk. Peaceful toward similar-sized fish but will push around smaller passive ones like firefish and fairy wrasses, and it jumps, so keep a lid on.
Tankmates
How Christmas 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.
