Green Lantern's favorite food is small live bait such as plankton, and can also eat commercial feed of better quality. After understanding what the traffic light fish eats, let's introduce its appearance characteristics.

The traffic light fish is 3 to 4 cm long, with small fins and a forked caudal fin. The anal fins are longer than the dorsal fins, and the pectoral fins are round and fan-shaped. The body color is unusually bright traffic light fish, the upper part of the fish body is a bright silver-blue-green longitudinal band, and the lower part of the fish body is fiery red from the vicinity of the head to the tail. When it swims, the body is red and sometimes green. Bright, like a neon sign.