For administration by immersion. Use at a rate of 4 grams of product (2 grams of praziquantel) per 1000 litres of pond or tank water.

If necessary a separate tank can be used to immerse the fish for the treatment period of at least 24 hours. In the case of egg-laying flukes, a second treatment 3 weeks later after the initial one is recommended to ensure that the hatching larvae are killed.