The picture?
What is this fish? Priacanthus fish
The picture below is a picture of a Priacanthus hamacanthus. Priacanthus hamrur, commonly known as the Gemini bigeye snapper. Commonly known as the Goldeneye.
The body is slightly tall, laterally compressed, and oblong-ovoid. The body is red, sometimes silvery-white on the lower belly, the edge of the odd fin is black, the ventral fin membrane is all black, and the caudal fin is truncate in small fish, and the upper and lower lobes of the caudal fin lengthen into a concave shape as the body length increases. The end of the caudal fin is darker in color, with no spots on any of the fins. The lateral line is slightly curved above the pectoral fins. Caudal fin truncate or biconcave. Body length up to 45 centimeters.
Inhabiting reef slopes or the lower edge of the reef floor, it hides in caves during the day and goes out to feed at night. It is ferocious and can vocalize. Carnivorous, mainly small fish and small crustaceans. breeding in July to August, the optimal water temperature of about 24.5 ~ 27 ℃, in the night to lay floating eggs, the baby fish with floating period.