Keep your betta, turtle, or small tropical fish happy and healthy with the BoxTech 50W Mini Aquarium Heater – a compact, reliable, and safe heating solution designed specifically for small tanks (3–12 gallons). Equipped with an external temperature controller, this mini aquarium heater lets you set the perfect water temperature (68°F–93°F) without getting your hands wet. The LED digital display shows real-time water temperature and error codes (E1/E2), so you always know your tank’s status at a glance. Smart safety features include anti-dry and overheating protection – if the heater is removed from water or overheats, it automatically shuts down and displays E1 or E2 fault code for instant awareness. Built with a thickened quartz tube and metal-ceramic heating element, it heats quickly, runs efficiently, and maintains stable water temperature – even after days of continuous use. Whether you're heating a low-water betta bowl or a small turtle tank, the BoxTech heater installs easily and works silently in the background, so you can focus on enjoying your underwater world. Perfect for desktop tanks, nano aquariums, and starter fish setups.
