I like your grow idea and your set-up, but I'm sorry I can never condone the use of Miracle Grow for a plethora of reasons. I would strongly urge you to consider changing mediums, here is a few reasons why:
- MG is made by an evil corporation with numerous offenses on record, and contains tons of disgusting ingredients including human waste
- MG has TERRIBLE drainage and you will inevitably suffer from overwatering and roots being deprived of oxygen
- MG contains the wrong ratio of nutrients for cannabis, and even worse, contains them is a time-released form. This gives you zero control over what is being fed to your plants and when, and flushing will just release more nutrients and make things worse
-Miracle Grow is EXPENSIVE. I don't understand why people opt to use it when it is well known how poor it is for growing weed, when there are plenty of more suitable options for widely available for much cheaper. You could even make your own mix very easily for much cheaper.
It's never too late to transplant into something better, you'll be happy you did. If you go to the 'Sick Plants' section of any grow forum, you'll see that there is a high % of people there that are growing with Miracle Grow, and that's no coincidence. The medium is one of the most important aspects of your set-up, don't willingly use one of the worst options avaiable to you, or you are only limiting the potential of your grow that you work so hard for.
Just a friendly grower trying to save you some headaches
EDIT: Just realized that I replied to an old post and the the Miracle Grow likely fried these plants to shit already....lol. Anyhow, for any future growers considering using the crap, DON'T DO IT!!!!!!