Kent Black Water Expert simulates water conditions in natural tropical waters. It encourages spawning and aids the hatching process. Black Water Expert improves color and vigor of fish and reduces stress. Its naturally chelated iron, vitamins and other organic compounds accelerate cell division and stimulate root systems in plants, providing for luxurious green plant growth, yet it does not cause unsightly algae growth. Black Water Expert is similar in composition to rich soil in a bottle. Addition to an aquarium tints the water a light brown or yellow color, creating conditions much like those found in the Amazon region of South America. Kent Black Water Expert is excellent for Discus, Tetras, Angelfish, Barbs, Gouramis and all other soft water fish.