TetraPond® AquaSafe® is a pond water conditioner and dechlorinator that’sessential for all pond keepers. Standard tap water contains chemicals and metals that can be harmful to pond fish. TetraPond AquaSafe quickly eliminates chlorine and chloramines and binds and detoxifies heavy metals. It converts standard water into “pond water” so fish and plants can flourish. TetraPond AquaSafe contains iodide for more vitality and readiness to spawn. This liquid formula also provides a colloid coating to protect sensitive fish gills and membranes. For outdoor ornamental ponds only. For new ponds or whenever adding tap water, use 10 mL for every 50 gallons of tap water, or use ¼ cup for every 300 gallons of tap water. To calculate pond gallons, use the following formulas: length in feet x width in feet x average depth in feet = cubic feet; cubic feet x 7.5 = pond gallons. If chlorine levels in your tap water are high enough that you can smell the chlorine, use up to double the standard dosage. Since 1951, Tetra has developed the world’s most comprehensive body of fish food knowledge, and fishkeeping enthusiasts have looked to the brand for products and solutions that add ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you need – from a large variety of quality fish food and innovative equipment to test kits and decor. MAKES TAP WATER SAFE: Pond water conditioner and dechlorinator. REMOVES HARMFUL SUBSTANCES: Takes out chlorine and chloramines and binds and detoxifies heavy metals that can be found in municipal water supplies. IMPROVES VITALITY: Contains iodide for more vitality and readiness to spawn. PROTECTIVE COATING: Liquid formula provides a colloid coating to protect sensitive fish gills and membranes. FOR OUTDOOR ORNAMENTAL PONDS: Use in new ponds or whenever adding tap water.