HITOP 400W PTC ceramics aquarium heater, really Shatterproof, suitable for 80-120gallon fish tanks and turtle tanks. With 3 powerful suction cups and a sticker thermometer, which can help you observe the water temperature at all times. | [Mechanical adjustment] Compared with electronically adjustment aquarium heaters, it has superior stability. Classic products tested by the market, will not overheat, do not cook fish, and can keep the water temperature stable for a long time. | [Easy to use] After the temperature setting is completed, there is no need to adjust too much, you can even forget this fish tank heater, it will automatically turn on and off according to the water temperature. Therefore, even if the adjustment knob is in the fish tank, it will not cause too much inconvenience. | [Ceramic PTC heating element] It has the advantages of high heating efficiency, long service life and energy saving, and is an excellent heating material for aquarium heater. It is also effective against corrosion and can be used in sea water. | [The protective cover is detachable] After long-term use, some dirt may adhere to the inside of the fish heater, which will affect the heating effect. The shell of this heater can be easily removed and installed, which is convenient for you to clean the heating element inside. We provide 12 months warranty service.