Best 500 watt heaters for 100+ gallon aquarium fish tanks

Have a large 100+ gallon tank? You need a powerful reliable heater to keep your fish tank at the proper temperature. See top picks for 500 watt heaters.

Best Aquarium Heaters by Tank Size

Probably the single most important piece of equipment your tank needs, next to the aquarium filter, is your aquarium heater. But with so many to choose from now, which is the right one for you?