I asked for advice on plants at LFS, and they told me to use this product. I had good luck with swords, but otherwise my plants sucked. They grew slowly, or died altogether. I looked at the ingredients and thought: "What the hell is Fe going to do?" Well, I bought some anyway because I waste money like THIS YEARS CONGRESS, and put the recommended amount in all of my tanks. Three weeks later, and I have some lush JUNGLES. If you have planted tanks that aren't quite what you expected, try this product. Mine look FRICKIN GREAT. At least in my opinion. My nitrates are lower, and I am glad that I paid for this product.