Prazi is not suitable for anchorworms. You want either trichlorfon (also called organophosphates, neguvon, masoten, dylox), or dimilin for that. The adult parasites clinging on the fish should be removed carefully using tweezers or you'll end up using a higher concentration of pesticide to kill them and end up harming the fish instead. Once the parasites are carefully removed, treat the wounds with betadine/iodine solution. Hydrogen peroxide is another option but betadine is sufficient enough and will not remove the damaged tissues since the HP must be used only ONCE.
