How to Calibrate an Eheim Jager Aquarium Heater

Watch as I unbox and properly calibrate an Eheim Jager 150 watt aquarium heater. Be sure to always check for damage before plugging your heater in, and read the directions completely for important safety information. Enjoy! http://www.eheim.com Do you own an aquarium? Would you like to help support this channel? Subscribe to My Aquarium Box to get the world's first subscription box for aquarium hobbyists delivered to your door once per month: http://www.myaquariumbox.com