QZQ Aquarium Heater, 300W Fish Tank Heater with Temperature Controller, Leaving Water Automatically Stop Heating, Overheating Protection, Turtle Tank Heater for Freshwater & Saltwater - size: 300W

About this item

• Newly Upgraded Aquarium Heater: Crafted from premium quartz glass, this aquarium heater is both highly durable and explosion-proof, making it perfect for both freshwater and saltwater aquariums. The corrosion- and heat-resistant outer shell ensures longevity while preventing fish from coming into direct contact with the heater, eliminating burn risks and providing complete protection for both your fish and you.
• Multiple Safety Protections: Equipped with over-temperature, low-temperature, and out-of-water protection, this fish tank heater ensures the safety of your aquatic pets. If the water temperature exceeds 94°F, falls below 59°F, or the heater’s top is above the water surface, the heater automatically shuts off and displays an error code with an alert. The system will resume normal operation only once the temperature drops below 94°F or the heater is fully submerged.
• Precise Temperature Control: With a temperature range of 59-94°F and an accuracy of ±1°F, this heater for aquarium maintains consistent and reliable heating. It will stop heating once the water reaches the set temperature and automatically restart when the temperature falls below the set point. Featuring a memory function, the turtle heater retains your last setting after a power outage, so you won’t need to readjust it when the power returns.
• External Digital Display Controller: Easily adjust settings via the external digital controller without getting your hands wet. The LED display shows both current and set temperatures, while a red LED indicates heating in progress and a blue LED signals that the target temperature is maintained. The aquarium heaters requires full submersion for optimal performance, ensuring fast, efficient heating for your aquarium.
• Wide Range of Applications: This 300W heater for aquarium is ideal for tanks ranging from 20 to 80 gallons, making it perfect for saltwater and freshwater aquariums, turtle tanks, fish markets, ponds, and more. It includes two sturdy suction cups for easy installation on tank walls or bottoms, allowing you to securely place it without disrupting your aquatic decor.

Overview

• Package Dimensions ‏: ‎ 14.42 x 6.61 x 2.24 inches; 1.48 Pounds
• Item model number ‏: ‎ QZ902
• Date First Available ‏: ‎ January 9, 2026
• Manufacturer ‏: ‎ QZQ
• ASIN ‏: ‎ B0GFVJG8QR
• Best Sellers Rank: #30,418 in Pet Supplies (See Top 100 in Pet Supplies) #51 in Aquarium Heaters
• Customer Reviews: 5.0 5.0 out of 5 stars (1)