The Longbearded Lionfish, also known as the Devil's Demoiselle, has a light reddish-brown banded body color with white and black stripes running vertically all over the body. It has a large, fan-shaped pectoral fin; a tall, striped dorsal fin, and poisonous spines on the dorsal and anal fins, and will eat small fish, shrimp, and crustaceans in the tank.

The three-spined lionfish has a broad head with a pair of tiny red eyes arranged asymmetrically, a body length of about 30 centimeters, and an unscaled body with cortical protuberances; broad pectoral fins and a rounded, truncated caudal fin; the three-spined lionfish's body is a brownish-gray color, and its body color varies according to its environment, usually dominated by earthy yellows and orange yellows, with irregular grayish-black and reddish patches on them.

The peacock lionfish is 30 to 35 centimeters long, with a flattened head and eyes located on the top of the head. In addition to having the characteristics of a lionfish, the distinguishing features are a dorsal fin made up of several stiff spiny strips, the back half of the dorsal fin is soft, and the caudal and anal fins are silvery white with black dots, much like a bushy fan. There are dozens of brown annular bands all over the body and a brown pattern on the head.