Aeroponic grow.... 3 weeks into it and My AK48 just stoped growing in size. 400mh using Technoflora B.C. products. the Roots inside the grow chamber look great with lots of new ones everyday, the leaves are green and healthy, but the plant size has stayed the same. 1 day ago I added a little extra nutes thinking that it might push them to grow more, got no change in plants health. Comments, suggestions??