🐠 Foxhymir Submersible Aquarium Heater 300W/500W - Accurate Temperature Control for Saltwater and Freshwater Tanks Review

【Automatic Constant Temperature Intelligent Heater】The heater is made of explosion-proof quartz glass material and a high-temperature resistant nickel-chromium heating wire with silicon carbide heat conduction, fast water heating, and long-lasting 2 hours heating. The protecting jacket is a high-temperature resistant PC material, which can protect the fish and plant from scalding effectively. 【Visible Temperature Setting】The controller is not waterproof, please keep away from water,LED digital display screen shows the current water temperature and preset temperature. The number above the controller is the current water temperature, and the number below is the set temperature, Red light means heating, Blue lights indicate constant temperature, blue light flashing indicates the heater is not fully submersible. 【Temperature Adjustment feature & Automatic Heating】Temperatures Ranges 59°F to 93°F, The heating rod built-in thermometer, When the water temperature is lower than the set temperature, the heater will automatically heating up, and stop heating when the water temperature is consistent with the set temperature. Fahrenheit and Celsius can be converted to each other, Pressing and holding for 5 seconds change the temperature display from Celsius to Fahrenheit. 【Memory Function, Dry Burning-resistant Protection】Controller with memory function. If the power is shut off, the heater will keep the temperature settings until it powers on again. No need to worry about pets when you go out. When the heating rod is 5cm above the water surface, the heating rod will automatically power off, and the controller will display "E1". When submerged in the water again, the heater will automatically return to normal, no need to unplug the power or reset the controller. 【300W/500W & 2 Suction Cups 】There is two power to choose, you can choose according to the capacity of your aquarium. The power 300W is suitable for aquariums from 150L to 200L, and the 500W power is suitable for aquariums from 200L to 300L. There are 2 silica gel suction cups on the back of the controller, which can be adsorbed on the fish tank effectively.