If she went from the first pic to where she is in your last pic stay on the 12/12. Once a week watering is a big strech in between, you see how the ends of your leaves are turning crispy, your girl was starting to eat herself. As I found out the hard way about watering, its up to your little girl and how much she eats. As a rule of thumb I use is to stick your finger into the soil and if the top 3/4 to 1 inch is dry then its time to water also the bag your soil came in "says" you should be good for 2 months but again if your girl is a heavy feeder then she may need additional nutes now. Good luck with your grow my friend if you have any questions just shoot the out there!