Polar express

This plant is definitely exhibiting indica dominant traits keeping a short bushy stature. After 3 weeks of flower I've only had about 3 inches of stretch. Buds seem fluffy and not too full yet. I do feel that they will start filling out and since the node spacing is so tight I could have multiple big colas. Did a little defoliation to bring light to hidden bud sites. I'm going to keep the advanced nutrients schedule. I've been watering every 3 days about. Found out my ph pen was way off and needed calibration, it was reading 1.8 too high so my actual ph was around 4.9-5.1 for a couple watering.