1, constitution introduction: Map fish is easy to raise. Because the individual of map fish is large, it is necessary to choose a larger fish tank when breeding. Because this kind of fish eats quite a lot, like pigs, and has strong excretory ability, it grows quite fast, about 3 cm long every month. But in this way, the water pollution caused by a large amount of feces discharged is very serious, so it is not suitable to put sand and grass in the tank, and a powerful nitrification system should be established to ensure the water quality!

2. Stocking density: Map fish consume a lot of oxygen, and are generally cultured in aquariums, mainly in dilute culture. In the aquarium of 120×50×50cm, when the fish length is 6cm, about 40 fish can be kept; When the body length is 10cm, about 20 pieces can be put; When the body length is 18cm, 4~6 can be released; When the body length exceeds 25cm, two pieces can be put.

3. Water temperature: The suitable water temperature for map fish is 22-28℃, and the most suitable water temperature is 24-26℃. If the water temperature is lower than18 C, the map fish will die, and if it is higher than 30°C, the map fish will not live well or even die.

4. Water quality: Although the water quality requirements of map fish are not very high, the water quality should be fresh, which can greatly promote the growth of fish. Every time the water is changed to 1/2-3/4 of the aquarium, a map fish with a body length of 2cm can reach about 7cm after one month. Every time new water is added, it can stimulate the metabolism of fish and increase appetite, so the growth rate is accelerated. Generally speaking, in the process of feeding, change the water 1 2 times a week to maintain the water quality.

5, lighting: map fish need to receive appropriate lighting every day. In a day, receive at least 2 hours of light to ensure the normal life of the map fish and make the body color of the map fish more gorgeous. At the same time, through illumination, the water quality is changed, so that the feeding water is not easy to rot.