Monitoring water temperature is essential for the health of your fish, making a reliable thermometer a must-have. The Marina Stainless Steel Thermometer securely attaches to your aquarium, offering precise temperature readings in both Centigrade and Fahrenheit for easy monitoring. It features a safety zone indicator tailored for most tropical fish, ensuring optimal conditions. Suitable for both freshwater and saltwater tanks, this thermometer is a vital tool for any aquarist. Available at shop.morphmarket.com.