Ok I Got A Couple Probs That I Need Answers To 1st Im Using A MG All Purpose Plant Food In A Bottle 8n 7p 6k With .10%iron but I want To Swich To A Stonger One Thats Powder 15n 30p 15k But It Also Has Other Trce Elements In It Like .02 Boron, .07 Copper, .15 iron, .05 Magnesium, .0005...