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- Jan 5, 2016
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What dosing should be done on a large macro refugium? I know about iron (Fe), and will guess iodine but there are surely others. I can't imagine complex and beautiful structures like Dragon's Breathe macro growing off of light, nitrate, phosphate, iron, and CO2 alone. I want to upgrade my refugium to house larger quantity and variety of macro algae and marine plants but don't want to deplete any vital nutrients for my reef. Hopefully there are also test kits for said nutrients. Or is this a bad idea to do a very large macro refugium on a reef and better to keep it small?
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