Two Little Fishies Iron Concentrate

Iron and manganese are essential to the health of all plants, including the macro algae that are commonly cultivated in refugium aquariums. Julian Sprung’s Reef Formula Iron Concentrate is a critically important source of these trace elements for ornamental macroalgae, sea-grasses, and the symbiotic zooxanthellae in corals and sea anemones. 250 ml (8.4 oz) & 500 ml (16.8 fl oz) bottle, and 1 Gallon.