I have been used one heater for my 50-55 gallon for a year, but the winter is approaching and I began to weigh the options to get one more heater for my aquarium. It is difficult to maintain the ideal temperature for an aquarium 50-55 gallon or larger, so you really need to consider this matter even you get the best heater for 50-55 gallon aquarium.
Some people may say that you only need one because if not the two heaters will constantly fight each other. So if you are get confuse about this, let’s check out what I discovered.
#1 What are the recommendation heater size for 50-55 gallon aquarium?
An ideal wattage for a heater for 50-55 gallon aquarium is from 100 watts to 200 watts. This is for the tank that housed in normal room temperature (78° F). A good rule of thumb when it comes to heater size is 3-5 watts per gallon.
Too much wattage could kill your fish because of the heat, while too weak wattage could possibly keep your tropical fish cold.
#2 When you should use multiple heater in your tank?
There are some distinct advantages to having more than one heater in an aquarium. If the your room that you place the aquarium is quite cold and the aquarium water temperature drops, it is a change that a single hater cannot raise the temperature.
You will need the second heater or not depending on how much you want to raise the temperature. Subtract the average temperature of the room from the target temperature for the aquarium water. If the value is more than 27 Degrees F, you will need to place one more heater for your aquarium
For example, you have a 50 gallon aquarium and you want to raise the temperature to 77 degrees F, if your room temperature is below 50 degrees, it is better to get the second heater.
If you have two heaters in your aquarium you may want to set the second heater to turn on a degree or two below what the primary heater is set at.
However, there is the note that you should only use multiple heater for 50-55 gallon tank and over or these two heater may heat up your small tank quickly and overheat your fish.
The second reason to have two aquarium heaters is for the case if one heater fails and cannot operate, the second heater will keep the aquarium at the desired temperature and also give you more time to fix the primary heater.