To determine the appropriate power of a heater stick, it is first necessary to understand the water capacity of the aquarium. Therefore, we need to calculate the volume of the water body. The calculation formula is very simple. Taking an aquarium with a length of 40 cm, a width of 23 cm, and a height of 25 cm as an example, we first multiply its length, width, and height, and then since the unit is centimeters, we need to divide the result by 1000. The calculation is as follows: (40 * 23 * 25) / 1000 = 23 liters. Therefore, the maximum water capacity of this aquarium is 23 liters.
Generally speaking, it is appropriate to equip one liter of water with two watts of power. Based on this calculation, a water body of twenty-three liters can be equipped with a forty-six-watt heater stick. However, some aquarists may ask: “There are no exactly forty-six-watt heater sticks on the market, what should I do?” In response to this, we can follow the principle of “buying larger rather than smaller” for heater sticks, choosing a power that is closest to forty-six watts, such as a fifty-watt heater stick.
It should be noted that this calculation formula is only applicable to heater sticks with temperature control functions, that is, those that can adjust the temperature and automatically stop working when the set temperature is reached. There are a few heater sticks on the market that are manually controlled in power rather than automatically adjusting the temperature. These types of heater sticks are not suitable for the above formula.
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