Flourite Red" is a specially fracted, stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any aquarium environment. Flourite Red" is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary and unlike competing products, Flourite Red" never has to be replaced. It remains effective for the life of the aquarium. Flourite Red" is not chemically coated or treated and will not alter the pH of the water. Although pre-washed, it may be rinsed before use to remove residual dust. Dust can also be minimized by filling aquarium slowly and dispersing water so that the Flourite Red" bed is not disturbed. Slight initial cloudiness is normal and will clear rapidly (2—12 hours). To shorten the cloudiness period use Clarity" in conjuction with mechanical filtration (such as filter floss). Aluminum 15710 Barium 104 Calcium 120 Cobalt 8 Chromium 22 Copper 19 Iron 16190 Potassium 2417 Magnesium 2816 Manganese 47 Sodium 365 Nickel 7 Vanadium 18 Zinc 50