Interpet Aquarium Anti-White Spot Plus No.6 100ml Anti-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). Price: £4.29 Quantity: