Quick Cure, For Freshwater & Saltwater Fish Fast relief for ick & protozoan parasites. Treats 400 gallons. Fast acting formula. Highly effective in 48 hours or less. Treats mild fluke outbreaks. Stops scratching on rocks and decor. Ick: Small white cysts on skin. Protozoan Parasites: A grey-white film of mucus. Protozoan Fin Damage: Fins are opaque and eroded. Made in the USA.