Radiata Lionfish

The Radiata Lionfish is often considered the most elegant of the Pterois lionfish species, distinguished by its clean, unadorned fin rays that lack the fleshy tabs and membranes found on other lionfish. The body features alternating bands of reddish-brown and white, and uniquely among lionfish, each fin ray is marked with a pair of horizontal white lines running along its length. Two distinctive white horizontal lines on the caudal peduncle (tail base) are a definitive field identification mark that separates this species from all other lionfish.

In the wild, the Radiata Lionfish is more reclusive and nocturnal than its cousin the Volitan Lionfish. It prefers sheltered caves, overhangs, and crevices on rocky and coral reefs, emerging primarily at dusk and dawn to hunt. It is typically found singly or in small groups and uses its large, fan-like pectoral fins to corner small fish and shrimp against the reef before striking with remarkable speed.

The Radiata Lionfish is a moderately challenging species to keep, primarily due to its initial reluctance to accept non-living foods. Many specimens require a prolonged weaning period from live ghost shrimp and feeder fish to frozen alternatives. Once acclimated and feeding well, however, it is a hardy and long-lived aquarium inhabitant. Its venomous dorsal spines demand respect, and aquarists should always be aware of the fish's position during tank maintenance. This species is not reef-safe, as it will consume small fish and crustaceans, and its messy feeding habits can impact water quality.