They have feathery pectoral fins that are used to attract smaller prey. On the other hand, same features keep the predators on the safe distance. Lionfish has more than thirteen (up to 18) venomous spines on the back side of the body. Venom is used only for self-defense (lionfish does not hunt using these spikes). Lionfish is a carnivore (meat-eater). It eats various types of fish and crustaceans. They often hunt as an ambush predator (using the factor of surprise). The large mouth of lionfish allows swallowing of the prey in a single bite. They can survive from 5 to 15 years as a diurnal animal (active during the day).