This fish is easily identified by the two horizontal white stripes on its caudal peduncle. Radiata lions exhibit broad vertical body bands that are typically dark red/maroon/brown, sometimes with a darkish green/black tint to them. These dark bands are separated by thin, stark white stripes. The lower rays of their long pectoral fin are connected by a membrane near the body up to about a quarter of their length, and the membranes of their second dorsal, anal and caudal fins lack color or markings, hence one of this fish’s common names: clearfin lionfish. This species typically sports a pair of supraorbital “antennae”.
This species has been dubbed “difficult to keep” due them being poor shippers, the fact that they are intolerant of poor water quality, and are sometimes difficult to feed/wean. However, although our specimen did look a bit “rough” from being “in the procurement chain”, it is a solid stick-feeder and will eat almost anything it is offered.
P. radiata feeds on crustaceans (mostly crabs and sometimes shrimp) in the wild. Therefore, a new fish that is being conditioned (or stubborn weaners) should be offered live ghost shrimp, small crawfish, or fiddler crabs as first foods.