1. Water temperature: Ornamental freshwater puffer fish have strong adaptability, and their requirements for water temperature are not high. When culturing artificially, it is best to keep the water temperature above 20 ℃. If conditions permit, it is best to install a heating rod to keep the water temperature at about 25 ℃. The heating rod can not only raise the temperature, but also keep the water temperature constant.

2. Water quality: Ornamental freshwater puffer fish has high requirements on water quality, and it is necessary to keep the water quality clean during artificial culture. If conditions permit, a circulating filtration system can be installed to slow down the deterioration of water quality.

3. Feeding: Freshwater puffer fish do not have high food requirements, and breeders can usually feed them some small fish, shrimp, shellfish, snails, etc. When puffer fish reach adulthood, they can choose to feed synthetic feed, which can also maintain balanced nutrition.

4. Oxygen: The demand for oxygen for puffer fish is not particularly high. As long as the breeding density is not particularly high, it is not necessary to use oxygen every day. However, in the environment where the temperature is on the high side or the density is too high, it is necessary to take oxygen regularly to ensure sufficient oxygen in the water.

The life span of puffer fish is relatively long, and in general, their life span can reach about 30 years. However, artificially cultured puffer fish are affected by the environment and feeding methods. Under normal circumstances, the life span of artificially cultured puffer fish cannot reach 30 years, and even if properly bred, their life span is about 10-20 years at most.