AquaBloom Chelated Fe is a highly concentrated ferrous iron supplement derived from unique organic iron compounds. Since plants require higher quantity of iron and absorb it in ferrous state, AquaBloom Chelated Fe is designed for water plants to give an enhancedcolor and texture to plants. AquaBloom Chelated Fe is harmless to fish and invertebrates. This product is safe for use in aquariums and will not interfere with normal biological filtration.