HITOP Adjustable Aquarium Heater 25W for Fish Tank up to 30L

HITOP aquarium heater 25W, length 18cm, power cord 1.8m, designed for small fish tanks, recommended for aquariums 8-30L. Thickened Glass: 2mm thickened quartz glass, 33% thicker than 1.5mm normal aquarium heaters, much reliable for your lovely fishes, your pets will no longer fear the winter. Adjustable and easy to use: the adjustable temperature range of this aquarium heater is 20-34℃, after setting the temp you want, it will on or shut off automatically when the tank temperature changes, no extra adjustment is required. Accurate Temperature Control: This fish tank heater built-in thermostat, will automatically keep the water at the set temperature within±2℃ error. Comes with a sticker thermometer to detect water temp at any time. Easier installation, you can install it with any angle by 2 powerful suction cups, just make sure it is under water fully. Besides, we provide 1 more extra suction cup for spare (total 3 PCS). To avoid rapid temperature changes that could affect the aquatic life in the aquarium, it will generally take about 24 hours for this aquarium glass heater to reach the set temperature when used for the first time.