Fritz Aquatics Fixick Anti-Parasitic Fish TreamentFritz FixIck is a revolutionary new way to treat aquatic external parasites. As one of the most common diseases, most aquarists will encounter, finding an Ick treatment that is simple, safe, and highly effective can be difficult, but this treatment delivers! Featuring Gentian Violet, which gives it a recognizable purple hue, this compound is much gentler than malachite green based treatments. Treats Ick, Protozoan Parasites, Chilodonella, Trichodina,