The movement of the discoloration appears to be nitrogen def. and the plants only have minimum growth pattern and seem to be stretched out bad. Not insulting you, but if your serious about growing start over. It's pretty obvious this is your first grow. Kill your children, read some books and watch some grow videos. Invest some money in a real grow light and you'll see vast amounts of improvement. If you only want to do two small plants just get ahold of a 150 watt hps will only cost you around 80-90 bucks. I'll drop the link site if i find it.