Just as the title says the stems are purple, lower leaves are yellowing and then dieing. and they just are not growing like they should. Some are barely 12" tall others 4" but its been a over a month since sprout. The short ones are bushy but suffer same problems just not as extreme. I don't have pics as i spilt water on my camera. I've been using straight water lately because i was thinking it was nute lockout. some of them stems are returning green but i just wanted to make sure i was on the right path. Any suggestions or tips would be much appreciated!!! Thanks