The TetraPond? winter survival solution for fish.
Toxic gases caused by decaying matter and fish waste can become trapped under the ice. TetraPond? De-Icer keeps an area of the pond ice-free.
Features: Releases harmful pond gases. Energy-efficient thermostat control shuts off power when not needed. Effective to -20øF (-18øC). 15 foot electrical cord. Three year limited warranty.