Review on Seachem Flourish Iron 500ml: Boost Plant Growth with Vital Iron Nutrients by Julia Cano

? or iron? Or does blood smell of iron? My Amazonian sword was yellowing from blade to vein. but the veins remained green. Usually this is a sign of iron deficiency in the water (maybe nitrogen) so I added cans of iron. I also have a zero nitrate score from the API core set (yes, I shake #2 like crazy) and from the Marineland test. stripes. so my plants take most of the nitrate out of the water, that could be the cause anyway. The iron has made my tank greener and I don't have to use it much.