Underwater Treasures Floating Glass Fish Thermometer

Check the temperature almost anywhere in your tank with the Underwater Treasures Floating Glass Fish Thermometer! This unique floating thermometer can be moved freely across the surface of your aquarium to help identify and monitor temperature fluctuations. The clear glass design resists algae growth and contains zero mercury or batteries to help keep your finned friends safe. It provides clear, accurate results displayed in Fahrenheit and Celsius. And when you’re finished, you can tuck the thermometer away on the side of your tank using the included suction cup. This is also great for use with Aquatic Turtles, Aquatic Amphibians, and Invertebrates.