1. Temperature: The guppy larvae are very sensitive to temperature, and they should be kept at 24 ~ 25 ℃. When small fish are in this temperature range, their activity is higher, their appetite is good, and their swimming ability is strong, which is conducive to promoting their growth and development.
2. Change the water: Clean water is the most important. However, it is better not to change the water for a few days after the birth of small fish. Their adaptability is weak, and changes in the environment can easily affect their growth. When they are one week old, change the water according to the cleanliness of the water. When changing water, we should pay attention to the consistency of new water source and old water source and the proximity of water temperature. If the water temperature changes suddenly, it will affect the normal operation of the fish's body function, which is not conducive to the growth of young fish. The temperature difference between new and old water should be controlled within 2 C.
3. Feeding: Fish only absorb enough nutrients to ensure normal growth and development. In the early stage of their growth, live bait can be used as staple food, which is very helpful for the growth of small fish. Among them, shrimp eggs, red nematodes, water fleas and so on are good choices. Some live baits are larger, and it is best to cut them up before feeding them. In the later stage, some artificial feed with balanced nutrition can be added appropriately, and then fed together with live bait.
1. Light: appropriate light time can stimulate the fish scale photoreceptor cells, scale color and brightness will be changed. If conditions permit, led lights can also be installed in the fish tank, receiving six hours of light irradiation every day will also make the fish more colorful.
2. Feed: The more nutritious the food, the more conducive to the color of the fish. Fresh bait is rich in nutrition, such as brine shrimp eggs, red nematodes and so on can be used to feed them. In addition, some compound hyperchromic feed can also help fish to develop color.
3. Oxygen: Feeding can be appropriate oxygen, the fish have sufficient oxygen to breathe, but also to promote hair color. An oxygen pump can be used to pump oxygen into the water for 1 to 2 hours every day.