Mid winter break autos

Week 2 is done and these ladies are starting to take off now, will be bending down in the next few days...the color on the 2nd plant is starting to come back to a darker green instead of a yellow green color which I'm happy with that have only been watering at this time and have been watering the yellowish plant with more water then her sister. I'm assuming her soil is hotter then her sisters but she is coming around nicely.