API Super Ick Cure is a green liquid medication formulated with malachite green (present as benzaldehyde green) in a water base, packaged in a plastic bottle with a built-in dosing cap. It is intended for freshwater aquariums housing tropical fish and is added directly to tank water after removing activated carbon from the filter. A single dose is measured by teaspoon or milliliter per gallon of water, with a second dose typically added 48 hours later to complete a treatment cycle. After the second dose, hobbyists wait an additional 48 hours, perform a partial water change, and replace filter carbon to help clear the temporary green tint the medication leaves in the water. The bottle includes everything needed to dose a tank of the corresponding volume, and no additional assembly or mixing is required beyond following the label's gallon-based dosing chart.