Marina Suction Glass Floating Thermometer

The Marina Floating Glass Thermometer is an accurate, easy reading glass thermometer for tropical fish tanks. With a suction cup to keep the thermometer in a suitable place and a safety zone temperature indicator, it?s easier than ever to protect your fish from unsafe temperatures. Suitable in both fresh and salt water, simply suction the Marina Floating Glass Thermometer in your aquarium and start monitoring the water temperature.