The rat fish is a tropical fish, which usually lives in places with relatively high water temperature. Ratfish like to live in water at 22-25 ℃. At this temperature, they are the most energetic and grow more vigorously. If they are kept in water with a temperature lower than 15 ℃, they are likely to be frostbitten. However, although they are tropical fish, the water temperature for raising them cannot exceed 30 ℃. When the temperature exceeds 30 ℃, it will affect their survival. Therefore, when raising them, it is necessary to control the temperature within an appropriate range.

Rat fish like to be in weakly alkaline water. When raising them, it is best to control the PH of water between 7.0 and 7.5. When the pH value of water is within this range, rats and fish are more motivated to eat, which is most suitable for their survival.

Low PH will affect the osmotic pressure balance in rats and fish. When PH is too low, some baking soda can be added to water to adjust PH value. If the PH is too high, it will affect the body surface that corrodes them. At this time, some vinegar can be added to the water to adjust the PH value. They like to live in clean water. In normal feeding, they should be changed for water once every 3-4 days. Don't feed too much to avoid polluting the water quality. Under conditions, it is necessary to add a filter to the water to reduce the number of water changes.