Ferrion Concentrated Iron Supplement for Marine Fish and Reef Aquariums 500 (500-ml)

Brightwell Aquatics Ferrion is a highly concentrated, stable iron supplement designed to support photosynthetic marine organisms, including macroalgae, coralline algae, seagrasses, and zooxanthellate corals. Iron plays a critical role in photosynthesis, helping aquatic plants and corals efficiently absorb nutrients and grow. Ferrion is especially beneficial for aquariums with refugiums, planted reef systems, and corals relying on symbiotic zooxanthellae. Proper iron levels promote vibrant coloration in coralline algae, healthier plant development, and improved nutrient uptake. This professional-grade formula is stronger than most competitors, requiring fewer doses while ensuring long-term stability. Formulated by marine scientists, it contains ultra-pure ingredients to provide targeted iron supplementation without disrupting water chemistry. By maintaining an iron concentration of 0.05 - 0.10 ppm, Ferrion helps create an optimal environment for macroalgae, corals, and marine plants while preventing nutrient deficiencies that can slow growth.