Shape difference: the male fish with thick and round spinous dorsal fin and the female fish with flat dorsal fin; The male fish with round chest and the female fish with sharp chest; It is the male fish whose body looks strong; The male fish with V-shaped reproductive pore and the female fish with U-shaped reproductive pore. Activity difference: most of the bold and high activity are male fish, and most of the low activity are female fish. Ventral fin difference: touch their ventral fins with your hand. The hard one is male and the soft one is female. 1、 How to divide tilapia into male and female 1. Appearance: the male and female of tilapia can be judged by their appearance, and the difference between male and female is still relatively large. The first is their spiny dorsal fin. If it is thicker and rounder, it is a male fish. If it is a female fish, it will be flat and thin. Second, we can also judge by observing their breasts. If the chest is round, it is a male fish, and if the chest is sharp, it is a female fish. Third, we can observe the strength of their whole body. The stronger one is the male fish. Fourth, we can also judge by looking at their reproductive pores. If the reproductive pores are V-shaped, it is a male fish; If the reproductive pore is U-shaped, it is the female fish.
2. Temperament: to judge the male and female of tilapia, we can also judge by their temperament. Generally speaking, the male fish is more active than the female fish, and is more active when grabbing food. Moreover, male fish are also brave. If they suddenly make a big noise, they are not easy to be frightened. The mother fish is timid. Once someone approaches, she may be frightened and run around.
3. Abdominal fin hardness: in addition, it can be judged by touching their abdominal fins. If it's hard, it's a male fish. If it is soft, it is the mother fish. 2、 Can male and female tilapia be raised together? Generally speaking, male and female tilapia had better not be raised together. They have different temperaments and may fight each other, and some fish may even be bitten and killed. Apart from putting them together during the breeding period, it is best to keep them separately at other times. Even during the breeding period, it is best to separate immediately after mating. （LuoHanYuZenMeFenGongMu，GongMuNengYiQiYangMa）