Ph your watering/feeding after you've added all additives, except for Ph up or down and aim for 6.5 to 6.8. Ck water/feeding, soil and runoff Ph every time until you get a handle on keeping the soil in that range. One ignores Ph to ones peril! In other words, you will not ever grow good weed and will probably kill everything you try to grow, if you ignore the Ph. Your set is basically alright, but you will need a real light before too long.