What good is all that when your plants die? The company's that sell greenhouses and custom manufacture hydroponic
nutrients usually have consulting programs. It may seem like a unnecessary expense now, but you'll save yourself years of trouble and dead (unsellable) plants. Not to mention a butt load of money. You want to dive into an Olympic sizes swimming pool without waiting for it to be full of water first. You just don't have the
practical experience about the basics yet.