Information about AQQA 300W Aquarium Heater with Digital Display

Keep aquarium water at a consistent temperature with this 300W aquarium heater, designed for 40–75 gallon fish tanks. Featuring adjustable temperature settings, an external digital controller, and multiple safety protections, it offers convenient temperature management for freshwater and saltwater aquariums.

Precise Temperature Control for a Stable Aquarium

Maintain a suitable water temperature with adjustable settings from 63–94°F (17–34°C). With ±1°F/±1°C accuracy and automatic heating cycles, this aquarium heater helps maintain a consistent environment for aquatic life.

• Adjustable temperature range of 63–94°F (17–34°C)

• Temperature accuracy of ±1°F/±1°C

• Automatic heating cycles for consistent temperature control

Digital Display and Convenient External Controller

Monitor water temperature and heating power on the clear digital display. The external controller makes it easy to adjust settings without reaching into the aquarium, while the switchable Fahrenheit and Celsius display provides added convenience.

• Clear digital temperature and power display

• External controller for convenient adjustments

• Easy switching between °F and °C

Multiple Safety Protections and Power-Off Memory

Designed with built-in safety features to help prevent unsafe heating conditions, this fish tank heater provides an overheat warning and automatically stops heating when insufficiently submerged.

• Overheat warning: Displays a flashing “High” alert when water temperature exceeds 95°F (35°C).

• Out-of-water protection: Stops heating when the heater is insufficiently submerged and displays an “Auto Shut Off” alert.

• Power-off memory: Recalls the last temperature setting when power returns.

These features help make daily aquarium temperature management more convenient and provide additional peace of mind.

Compact Design for 40–75 Gallon Freshwater & Saltwater Tanks

The 300W aquarium heater is designed for 40–75 gallon fish tanks. Its compact, short-body design helps save space inside the aquarium while allowing flexible placement in an area with good water circulation.

Suitable for both freshwater and saltwater aquariums, it should be fully submerged during operation and positioned away from obstructions to support proper water flow.