Code: INT392Anti-White Spot Plus cures white spot parasite disease. Effective new active ingredients. Advanced dye based ingredient. Harmless to filter and all species of fish, except Mormyrids( Elephant nose fish) and is also harmless to plants.This 100ml bottle is sufficient to treat 500 Litres (110 gallons).'Ich', or White spot is the most common parasitic problem in aqauriums, this treatment will elminate freshwater white spot.There is a handy pipettte and measuring cup, their is also a chart to calculate the required dosage as well as a chart to aid diagnosis of alternative fish problems