Gold Basicsâ„¢ is designed to provide the optimal bowl environment for goldfish. Gold Basicsâ„¢ removes any chlorine, chloramine, and ammonia. It buffers the water to a pH of 7.0 and promotes vigorous health and growth. 50 mL treats 25 US gallons. Feed NutriDietÂ® Goldfish Flakes for optimal fish health.