These damn things are stretching 1&1/2 inches a day now!!! I now know I can only do 4 plants in 5 gallon containers in my 4 x 4 tent and be comfortable for all plants. I have 2 plants in 2 gallon smart pots, not getting much light. But they are stretching like crazy too. This is my first run in smartpots and my first run in 5 gallon pots as well. Lets just say I am thoroughly impressed, and If I can finish these ladies off in flower, I will be loving this new grow setup!! Pics tomorrow!!