Like Bakatre said. The problem though is the NUTRIENT GIG! MG has plenty and all others do too including Fox Farms products. But those who are inexperienced and read here seem to gear up to grow by asking more questions about nutrients than all other subjects combined. What brand, how much to use and when to use it.
Use the MG. I have and I will again if that is what's on the shelf when I need dirt. Just do NOT even consider nutrients until the plant DEMONSTRATES the need for supplemental feedings. If you cannot determine that then my advice is use the MG and never touch a fertilizer.