Kordon Pond NovAqua Instant Water ConditionerKordon Pond NovAqua creates a protective slime coating on a fishs body when the natural slime has been removed due to injury, disease or rough handling. In addition, it adds electrolytes for proper water balance, removes chlorine, copper, hard metals and toxins, and helps stabilize the pH of tap water, making it safe for your pond fish. Adds superior protective skin slime coat Adds essential electrolytes Detoxifies chlorine, chloramine and toxic