Per Seachems Website.
Pond Prime : Use 1/8 cup (2 tablespoons) for each 600-700 gallons for removing chlorine or chloramine. To detoxify high concentrations of ammonia or nitrite, use 1/4 to 1/2 cup for each 600 gallons. Sulfur odor is normal. For exceptionally high chloramine concentrations, a double dose may be used safely. To detoxify nitrite in an emergency, up to 5 times normal dose may be used. If temperature is > 30 °C (86 °F) and chlorine or ammonia levels are low, use a half dose.
I'm assuming the smallest (500ml) size.
Regular Prime : Use 1 capful (5 mL) for each 200 L (50 gallons*) of new water. For smaller doses, please note each cap thread is approx. 1 mL). This removes approximately 0.8 mg/L ammonia, 1.2 mg/L chloramine, or 3.3 mg/L chlorine. May be added to aquarium directly, but better if added to new water first. If adding directly to aquarium, base dose on aquarium volume. Sulfur odor is normal. For exceptionally high chloramine concentrations, a double dose may be used safely. To detoxify nitrite in an emergency, up to 5 times normal dose may be used. If temperature is > 30 °C (86 °F) and chlorine or ammonia levels are low, use a half dose.
Again, assuming the smallest size (50ml)
Regular : 500 mL treats 5000 gallons*. More than any other de-chlorinator
No such info for a given size of pond.
Pond Prime : Use 1/8 cup (2 tablespoons) for each 600-700 gallons for removing chlorine or chloramine. To detoxify high concentrations of ammonia or nitrite, use 1/4 to 1/2 cup for each 600 gallons. Sulfur odor is normal. For exceptionally high chloramine concentrations, a double dose may be used safely. To detoxify nitrite in an emergency, up to 5 times normal dose may be used. If temperature is > 30 °C (86 °F) and chlorine or ammonia levels are low, use a half dose.
I'm assuming the smallest (500ml) size.
Regular Prime : Use 1 capful (5 mL) for each 200 L (50 gallons*) of new water. For smaller doses, please note each cap thread is approx. 1 mL). This removes approximately 0.8 mg/L ammonia, 1.2 mg/L chloramine, or 3.3 mg/L chlorine. May be added to aquarium directly, but better if added to new water first. If adding directly to aquarium, base dose on aquarium volume. Sulfur odor is normal. For exceptionally high chloramine concentrations, a double dose may be used safely. To detoxify nitrite in an emergency, up to 5 times normal dose may be used. If temperature is > 30 °C (86 °F) and chlorine or ammonia levels are low, use a half dose.
Again, assuming the smallest size (50ml)
Regular : 500 mL treats 5000 gallons*. More than any other de-chlorinator
No such info for a given size of pond.