Toxic gases caused by decaying matter and fish waste can become trapped under the ice. The TetraPond De-Icer is a winter survival solution for fish, keeping an area of your pond ice-free to allow harmful gases to escape through the opening. The energy-efficient thermostat control shuts off power when not needed. The natural stone finish blends with your pond's surroundings. This 300-watt device is effective down to -20 degrees. Includes a 3-year limited warranty (see product packaging for details). UL Listed. Never break the ice to create an opening in ice on the surface of your pond - you'll risk causing harmful shockwaves that can injure or even kill your fish.
Tetra Pond De-Icer 300watt