Hi guys, I've been chugging along using seachem products but it's pretty expensive. I use excel, flourish, iron, and potassium. I am having ok results. No crazy growth but everything is doing fine. It is a discus tank so I do burn through the chemicals. I need some suggestions on a good startup package of dry ferts or something that would be cheaper but doesn't involve too much math/using crazy mixing and measuring tools etc. anybody have a favorite to suggest?