Betta fish need a heater. Betta fish are tropical fish, and the suitable water temperature range is between 24 and 28 degrees Celsius. In cold seasons or environments with large temperature fluctuations, using a heater can ensure stable water temperature and avoid adverse effects on betta fish caused by low water temperature.
The importance of a heater for betta fish lies in maintaining stable water temperature. Betta fish are very sensitive to changes in water temperature. A suitable water temperature is conducive to their health and vitality. If the water temperature is too low, betta fish may feel uncomfortable and even fall ill. Therefore, using a heater is one of the important measures to ensure a stable living environment for betta fish.
According to different environments and seasons, choosing a suitable heater is very important. For example, in areas with relatively high temperatures in the south, if the indoor temperature has reached the suitable range, additional heating equipment may not be needed. But in most cases, using devices such as capsule heating rods and USB mini heating rods can effectively maintain water temperature and ensure the healthy growth of betta fish.