Aquarium Heater Size Per Gallon
A heater this size will be sufficient if the difference between the aquariums temperature and the ambient room temperature is around 5 degrees fahrenheit.
Aquarium heater size per gallon. For example if you have a 20 gallon tank under those conditions the suggested heater size is 100 watts. This means the cheapest biggest heater may not be the best aquarium heater. A 10 gallon tank for example will typically need a 25 to 75 watt heater while a 75 gallon tank will require 250 to 300 watts.
It is a type of non adjustable submersible heater for the aquariums with the size ranging from 2 to 10 gallons. Larger tanks may require multiple heaters. However often more wattage is required depending on how much you want to raise the temperature.
A standard 125 gallon aquarium will need a 375 watt heater at a minimum. So for example a 10 gallon aquarium would need a 25 to 50 watt heater. For the heater wattage the basic rule of thumb is to use between 2 5 and 5 watts per gallon of actual water volume in the aquarium.
Ideally you want a basic heater wattage of between 2 5 and 5 watts per gallon of water volume. Smaller aquariums require smaller heaters. If you need to increase a 125 gallon aquariums temperature by 10 degrees fahrenheit you will need to add multiple heaters that add up to 625 watts of heating power.
Furthermore the heater is quite perfect to hide behind the aquarium decoration because of the compact design without led display. Typically you will need around 2 5 to 5 watts per gallon in your tank. A 375 watt heater will be just enough to increase a 125 gallon aquariums temperature by 5 degrees fahrenheit.
Most aquarium heaters range from 25 watts to 300 watts. Still this is only a rough estimate you will also need to consider the room temperature to make an accurate calculation. Aquarium heater size guide when it comes to selecting the best aquarium heater size there is no per gallon rule that works in all cases.