Well for now I am using AgraMilk and lime water drip at night. Been pretty good so far at a steady 400ppm. My ideal source would be the CA Reactor but this whole project put a $ strain on the old wallet. The lighting is my next thinker not quite sure if it's to much or just to much 20k. Going to be doing som thinking on that one. Maybe should have went VHO or T5 with MH? Who knows you can probally always find something you wish you did better.