Highly-concentrated and stable iron solution for supplementing aquaria containing hermatypic organisms (i.e. photosynthetic or zooxanthellate corals, clams, and their allies), macroalgae, coralline algae, mangroves, marsh grasses, and other desirable marine algae and plantsParticularly suited to systems outfitted with a refugium or mud systemStronger than most competing productsComposed of purified water and ultra-high purity materialsFormulated by a marine scientist