Damsel
Azure Damselfish
Chrysiptera hemicyanea
The Azure Damselfish is a small, two-tone stunner — electric blue over the head and back that gives way to a clean yellow belly and tail. Hardy and forgiving of imperfect water, it is a classic starter fish, but it grows territorial with age and will defend a chosen patch of rock, so it earns its semi-aggressive label. Best kept singly or as a bonded pair in a reef with plenty of rockwork to break up sightlines.
Keep just one per tank — two will fight.
Something look wrong? Report an errorTankmates
How Azure Damselfish 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.
