Try biobizz light mix soil next time. It's reasonable priced on amazon. 2 bags of soil filled five 5 gallon grow bags. Plants love it. They grow way faster. Check out my diary of auto cheese by fast buds. At my week 3 I had plants 2 feet tall already with lots of branches and bud sites. Grow medium plays a huge roll in success. I highly recommend biobizz light mix. Check out my grow and you'll see why. Best of luck! If u have any questions feel free to hit me up anytime bud.
@AutoKing, you can make your own BioJizz at a fraction by cleaning coco coir block and some amendments.
Some people like to buy 100 chinese lights and use organic mud to grow their slow plants that's their prerogative though.