thanks so much for the info tips! I ll check out the i grow chronic site and youtube. Can ya answer this for me? got a 15 gallon res, only 4 plants (left) is it worth the nutes to mix up a whole batch or can ya just put it in 16 0z bottles and handwater as I ve been doing? what does it mean when the leaves curl inward? (still all green no coloring) thanks, happy holidays!