I think I can help you.. 1 thing I learned from growing is 'cutting corners and expenses will only lead to problems.' Cannabis can be extremely easy to grow when you spend the money to do it right/ the easy way. I hope you are using distilled water. If not, I suggest you work a couple gallons a weeks into your budget now. Also, dont use MG soil. I personally think its for the more experienced growers who can identify and correct deficiencies on a moments notice. Use FFOF. Period. Its gotta be my best friend. That shit is wicked. Its not cheap so you can cut it with some coco or pro-mix to conserve, but its the only way to go. Also bigger roots equals bigger fruits. So spend the money on plenty of soil and pots. For the $50 one would spend on an eighth, 2 bags of FFOF and an HPS will always produce way more than a couple grams. And Im referring to a just water, no nute schedule.