Transform your pond into a serene aquatic haven with thePOND AQUA ESSENTIAL Pond Water Conditioner. Effectively eliminates toxic ammonia produced by fish waste, ensuring fish health. For detoxifying ammonia, nitrite, and nitrate, add 5 ml per 10 U.S. gallons (38 L) or 50 ml per 100 U.S. gallons (380 L).
eBay