The Aquascape 300-Watt Pond De-Icer is ideal for keeping a small hole in the ice during cold winter months, and ensures proper gas exchange, helping keep fish alive throughout the winter. Maintaining this opening is paramount for the safety of your fish. The Aquascape 300-watt Pond De- Icer is energy efficient and the De-Icer's stainless steel construction will prevent corrosion and cracking throughout the year, providing years of trouble-free operation. A built-in LED light will indicate when the De-Icer is in use, making it easy to check on its functionality throughout the season. Aquascape is passionate about the products we produce, providing unique products, designs, and features that stand above the competition.