Reef•Basis Iron is a high quality, bio-available, chelated iron complex designed to safely raise the iron level in marine aquariums, providing essential iron for increased growth rates in caulerpa, coralline algae, other calcareous marine algae and many other marine organisms. It contains no gluconates, or polygluconates. It is phosphate and nitrate free and contains no fertilizers that could cause unwanted hair algae growth.

Iron is crucial for photosynthesis in all plants, including caulerpa, mangroves, calcareous algae, and symbiotic algae in coral, marine clam and other invertebrate tissues. In marine aquariums, iron is used up rapidly and removed through precipitation. Reef•Basis Iron is chelated with EDTA, a professional sequestrant that will allow it to remain soluble until used by the life that requires it.