Aquarium Chemicals Laguna

The Laguna Power Heat 500-watt De-Icer creates and maintains a thawed, open area at the surface of the pond, allowing toxic gases from fish respiration and decomposing organic matter to escape. The thawed area also allows oxygen to re-enter the pond. Safe for plastic and liner ponds. Made from stainless steel the heater has an extremly high impact resistance. The unit has dual-zone integrated thermostats to help heat distribution. Suitable for garden zones 1 to 8 (-6 degree C / 20 degree F and below). The De-Icer will not harm fish or plants. | Laguna Pond Heater, 500 Watts