What size heater is best for a 130 gallon aquarium?
On One Hand: One HeaterIt’s cheaper to purchase, install and maintain one 500-watt titanium heater, which is sufficient to heat aquariums between 100 and 130 gallons–particularly when the aquariums is in a room that never drops below 65 degrees Fahrenheit.On the Other: Multiple HeatersLarge aquariums can benefit from the use of multiple heaters because the water is heated more evenly and there is a backup in case one of the heaters malfunctions. The options available for 130-gallon aquariums are to use two heaters with 300 watts of power each or three heaters with 200 watts each.Bottom LineFor people on a budget or who are looking for simplicity, one 500-watt heater is the choice for a 130-gallon aquarium.
