Is it okay to use a 5-watt heating rod for fighting fish tank 2*2*2?

a 2 cm fish tank heating rod needs 5 watts. Fish farming is a technical activity, which requires a lot of equipment, such as fish tank, circulating pump, heating rod, lamp tube, oxygen pump, filter material, cotton filter, etc. Among them, the heating rod is used to heat the fish tank to ensure the constant water temperature of the fish tank. The principle of choosing the heating rod is to be as large as possible, which can make the water temperature more stable and the service life of the heating rod longer. It is more reasonable to choose a heating rod of 5 watts for a fish tank of 2. So the heating rod for a 2 cm fish tank needs 5 watts.