Natural Waterscapes WinterGard Cold Water Bacteria 10 lb — Winter Pond Treatment

Formulated to shield ponds from winter water-quality problems, Natural Waterscapes WinterGard Cold Water Bacteria (10 lb) offers proactive protection throughout the cold season. This powerful pond cleaner is effective in spring, fall and winter, helping to reduce the risk of winter fish kills and providing an ideal jumpstart to balance pond water in early spring. Safe for fish, pets, and wildlife.