• Calculate the volume of your aquarium in litres (length x width x depth (in cm)/1000). Alternatively
• Shake the bottle thoroughly before use.
• Mix required dose of treatment with 1 litre of aquarium water.
• Add slowly to aquarium.
• Treatment can be repeated 7 days after last dose. If you feel a second dose is required, first check your diagnosis is correct, test your water quality using NT Labs Test Kit  and carry out a 30% partial water change.

Warning:
This product will colour the water yellow. It will also stain skin and clothing, but is harmless to filter bacteria and all species of fish and plants. Water changes can be performed after 5 days of treatment to remove any remaining colour.