This brightly colored and graceful fish is usually found in coral reefs, especially in shallow waters of the Indo-Pacific region, hovering in caves. The lion-fish belongs to the Scorpion fish family and are venomous. They move incredible fast in order to catch its prey. What part of its body delivers the venom? The spines. The colorful lion fish have long fin spines that can produce painful puncture wounds. A person punctured by one of the sharp spines will immediately feel severe pain and swelling. The sting is rarely fatal and wound may take several months to fully heal.