Sodium thiosulfate for dechlorination of tap water during water changes or anytime tap water is added to the pond or aquarium.
Mix entire contents into a one-gallon jug of pure water. Shake to dissolve. One teaspoon of this solution treats at least 10 gallons; one cup treats 600 gallons; entire gallon treats 10,000 gallons. Appropriate dosages will vary with amount of chlorine or chloramines in the tap water of your area; when in doubt, use a slightly larger amount of Chlor-gon.
Best when used within one year.
