The Aqueon Preset Aquarium Heater makes it easy to keep your aquarium at just the right temperature, all the time. This simple, convenient heater maintains the water temperature at a healthy 78Â°F - perfect for tropical fish - with no adjustment required.
The compact size makes these heaters ideal for a wide variety of aquarium shapes and sizes. They are fully submersible and made of durable, shatter-proof materials. An LED indicator light displays red when actively heating, and an automatic safety shut-off protects against damage from overheating.