Hagen Living Sea Floating Hydrometer with Thermometer, Celcius & Fahrenheit, 8 inch

Hagen Living Sea Hydrometer helps to ensure you have the proper salt content in your aquarium. Ideal salt content is absolutely essential to the health and well being of all marine species. This Hydrometer allows you to easily calculate the specific gravity of your marine water and easily determine that any replacement water you use has the same salinity as the water in your aquarium. In addition, this unit provides temperature readings in Fahrenheit and Celcius.

• 8" (20 cm)
• Accurate
• Easy to read
• Thermometer - Celcius & Fahrenheit