Volitans Lionfish
The classic red lionfish — the one everybody pictures — with banner-like pectoral fins and bold red-and-white banding that make it a genuine centrepiece. It is an ambush predator that swallows whole any fish or shrimp small enough to fit, which in its case means most of the tank: tankmates have to be chosen by size, not by temperament. Its dorsal, pelvic and anal spines are venomous, and the sting is severe enough that every hand in the tank has to be a deliberate one, however tame the fish becomes. It also grows big and lives long, so this is a decade-long commitment to a large, meat-fed system rather than an impulse centrepiece.
Tankmates
How Volitans Lionfish 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.
