Hi guys, I have finally decided to take the dive into growing some of my own bud and i'd like to make a start with an easy low cost low space hydroponic setup. My plan is to make a small reflective box with a few computer fans and a 50W LED grow light that i have purchased from e-bay. I have a questions that i would like to get some opinions on; Is my LED going to be big enough? Does anyone have any experience using cheap LED lights? (Keep in mind i intend to grow a very small plant that will be pinned down to keep it low) Hydroponics; What growing medium is recommended? I was hoping to use some rock wool that i have lying around and purchase some perlite to surround the rock wool. Can anyone recommend a good cheap NPK nutrient mix that is available online. Also do i need to to bother with calcium, magnesium or any other nutrients? I would appreciate any info that people can provide and I will keep you all updated with my build/grow pics Cheers