Theo

• Do I need to turn the Heater OFF when I am doing a water change?

  Hydor Heaters MUST NOT be used out of water. When undertaking water changes Hydor recommend that the heater is turned off and unplugged from the power socket at least 30 minutes before any waterchange. The Heater can ONLY then be turned back on when the Aquarium is full and the heater is complete...

• Whats the best position to mount Hydor heaters? Can I use the Heater for Terrarium?

  Hydor theo heaters need to be mounted close to water flow from a pump using the suckers provided ( due to the Hydor heaters low operating temperature the suckers can be mounted on the element itself ) Hydor recommend that the heater is mounted in a slight diagonal position to allow the heater to ...