>> but arent they stretched too much already to encourage upward growth? and as far as the light color.
Just think about what occurs naturally. The germinating seeds usually have to push their way through undergrowth, then grow upwards to find light. If you give them too much light when they are young, they stop growing up and start growing out. Give them a bit more space and they will balance themselves out as they grow. I started my plants out in a room with a normal light bulb. They took a while, but grew fine. I put them under grow lights when they were a bit bigger. Your plants have a long way to go yet. Hope this helps.