The Jungle Pond Start Water Treatment formula creates a healthy environment for your outdoor pond and fish by improving and aging the water. It begins working immediately to make water safe by removing chlorine and chloramine while also neutralizing heavy metals in the water such as copper lead zinc and other heavy metals. This pond water cleaner also stimulates the natural growth of your fish s natural protective slime coating which can be lost during handling netting spawning injury disease and other causes of stress keeping them safer for longer and reducing their overall stress level. It adds vital electrolytes and adds the long-term protection that your aquatic pets need by protecting them against nitrite poisoning. The formula does its work without altering the pH of the water and is safe for all ornamental pond fish and pond plants. The bottle contains 8 fl oz of the Jungle Pond Start Water Treatment.