I think if you spend a few seconds reading the leaflet inside you would find this:
Dosage: 1 capsule for every 50 litres (12 gallons) of aquarium water every 7 days.
Acts faster if the capsules are opened and the content and capsule shells are put in.
Note: If overdosed a temporary cloudiness can occur, owing to an increase in natural plankton. This is completely harmless.
BC









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