Heat Resistant Abs: Constructed from premium heat-resistant ABS, our heater is built to withstand the rigors of daily use, offering durability and safety. Energy Efficient: Our heater features an intermittent operation mode that optimizes power consumption, providing cost-effective temperature control for your aquarium. Safe Operation: With a scald-preventing design and anti-explosion features, our heater ensures a secure environment for both pets and humans alike. Anti-Explosion Design: The sturdy sandy quartz filler adds an extra layer of safety, preventing explosions and ensuring your heater operates smoothly. Guaranteed Customer Service: Enjoy the assurance of our warranty and dedicated customer support, ready to assist with any queries or issues. Transform your mini aquarium into a haven of warmth and comfort with our Submersible Aquarium Heater. Engineered with heat-resistant ABS and a sandy quartz filler, it offers unparalleled safety and efficiency. Perfectly suited for 1-5 gallon tanks, this heater is a game-changer for maintaining a steady temperature of 25°C (77°F). Say farewell to manual adjustments and hello to the peace of mind that comes with a heater designed for both energy savings and the well-being of your aquatic pets.