final weeks only

You overfed them , too much nitrogen for sure . You dont need cal mag, they are overboosted. Will stay small if you keep on. Every feed now its a waist, ph water for 3 rounds at least, or harsh smoke and small buds ... Sounds so bad, but plants dont grow if overfed and yours are... Leaves are not so efficiant if they are too bright or too dark, read the plant, not nutrition feed chart ;) And please stop root juice, first 3 weeks for it, 4 if plant was sick or underdeveloped, plus you start on second week. Its some sort of PGR, never good, taste bad, forces plant to mutations if used too long.