Devank World 500 watt Fully Automatic Submersible, Highest Quality, Steel Aquarium Heater, suitable for almost all small to medium sized aquariums, double glass protection aquarium heater/thermostat, suitable for all fresh water fish tanks, planted tanks ,brackish water tanks ,salt water/marine tanks, turtle tanks, keeps stable water temperature to keep fishes healthy, disease free throughout the entire winter season and other season when weather temperature fluctuates, imported, highly durable, maintenance free, with auto on/off facility, standby light facility,
