Highfin Velvetfish

Interesting Info

• The Highfin Velvetfish is a rare little ambush predator only found on Lord Howe Island in Australia.
• It belongs to the velvetfish family (Aploactinidae), a group of secretive bottom-dwellers with rough, velvety skin.
• Its name “Highfin” comes from the tall spiny dorsal fin, which can be raised suddenly when the fish feels threatened.
• The body is mottled brown, reddish, or grey with skin flaps and frills that make it look like a piece of coral rubble or weed.
• It spends most of its time sitting motionless on the seafloor, waiting for small fish and crustaceans to wander close enough to strike.
• When prey comes near, it lunges with lightning speed, opening its large mouth to suck in the meal whole.
• Highfin Velvetfish are most often found in coral rubble, rocky crevices, or among sponges and algae.
• They live at depths from shallow reefs down to about 30 m (100 ft).
• Like other velvetfishes, they have venomous fin spines that can inflict a painful sting if handled.
• Juveniles are even more cryptic than adults, often hiding in rubble or algae patches close to shore.
• Breeding behaviour is poorly known, but eggs are thought to be laid in protected reef crevices and guarded until hatching.
• The lifespan is uncertain, though small velvetfish likely live 3–5 years in the wild.
• Predators include larger reef fish, octopuses, and reef-dwelling crustacean hunters, but their camouflage and spines offer strong protection.
• They are rarely see unless searching carefully in coral rubble or tide pools.