Kordon's Rid·Ich+ is a combination of two powerful medications which have proven effective in the control of many diseases of freshwater fishes caused by external protozoan (single cell) parasites such as white spot disease, Ichthyophthiriasis, Costia, Trichodina, Chilodonella and saltwater external parasites such as Cryptocaryon and Amyloodinium. The medication can also treat fungal infections in fishes. Rid·Ich+ is recommended as the best treatment for Ich, (white spot disease). Efficacy is improved and the treatment time is often reduced when compared to treatment with either malachite or formalin alone. Additionally, the Rid·Ich+ formula utilizes the less common but also less toxic chloride salt of malachite green (this is the same salt used in Kordon's Malachite Green). The recommended treatment concentration of Rid·Ich+ should be approached with caution, carefully observing the reactions of the treated fishes and ceasing treatment if any undue stress is noted. Remember, when the first outward signs of Ich (scattered spots) are noticed, the fish is often quite heavily parasitized in the gills - lowering the fish's ability to withstand additional stress. The weaker the fishes' condition the poorer its response to any medication. Rid·Ich+ has been shown to be reasonably safe for use on fishes which normally cannot tolerate malachite green alone. Fishes such as the so-called "scale-less" species (loaches, catfish, etc.) tolerate Rid·Ich+ very well, but be sure to follow cautions noted earlier. Some Mormyrids (elephant noses) may be particularly sensitive and should not be treated with any medication containing malachite green, including Rid·Ich+.