Types of Grouper Spotted Grouper, Red Spotted Grouper, Green Grouper, and Slant Banded Grouper.

1, point-banded grouper

Dorsal fins 8-11 spines, no black spots on the base, 5 inconspicuous transverse bands on the side of the body, and spots dispersed on the side of the body and each fin. It is a tropical middle and lower fish, preferring to inhabit the rocky bottom sea area, and is a valuable fish in the South China Sea. Fierce, carnivorous, preferring fish, shrimp, crabs, killing each other when hungry.

2, red-spotted grouper

Dorsal fins Ⅺ, 16, dorsal fin base with a black spot, the body brown, the head, the body, the odd fins have a lot of orange-yellow spots (immersion specimens become white). Warm-temperate pelagic fish. Adults feed on fish, shrimp, and crabs. Hermaphroditic, females mature first, most are sexually mature at age 3 and change from female to male at 231-295 mm body length.

3, green grouper

The lower part of the body with a number of reddish-orange spots, the side of the body with six vertical stripes of dark brown, the third and fourth bands are the widest interval; only the caudal fin with spots. Warm-water pelagic fish. Juveniles feed on plankton, adults feed on fish, shrimp, and crabs. Females and males are homozygous, females are sexually mature first, sexually reversed when body length is 250-400 millimeters, and males are all sexually mature at age 6 (individually at age 5).

4, oblique banded grouper

Body extension, in the head and body of the back of the tan, the bottom of the abdomen is white; countless orange-brown or reddish-brown dots are distributed in the head, body and the middle of the fins; the body has five large irregular, intermittent, to the abdomen forked black spots.

The first black spot is on the underside of the anterior dorsal fin spine, and the last on the caudal peduncle; 2 black spots are on the middle gill cover, while the other 1-2 are on the border of the secondary and middle gill covers.