Discus Wormer is a 5% Flubendazole based medicinal product for the treatment of gill flukes, body flukes and intestinal helminths including tapeworm in tropical fish. Please read dosage amounts below carefully. Can be used as a regular routine wormer every month.Discus Wormer can be used at all temperatures and will not effect filters and plants. UV is safe to leave on during treatment. After a treatment, a 10% water change may be done after seven days. Directions Remove any activated carbon in the filter before treating with wormerdirect.com Discus Wormer 5%. Warning: DO NOT OVERDOSE. Overdosing can fish fatalities. Do not use Discus Wormer with invertebrates, snails, fresh water stingrays and any other scale less sensitive species. Use the 0.5ml/0.3g, scoop provided, to measure the recommended amount, see dosage below. Place in a suitable mixing container and mix thoroughly with approximately one litre of aquarium water. When dissolved gently pour over the aquarium water over a 5 minute period. Use within 3 months of opening.PLEASE READ INSTRUCTION BEFORE USE