If you ever use MG again for a test grow, cut it with about 10-20% peat or coco and flush with about 2gals water/ 1gal of soil mix. Doing this helps break down the time release nutes and wash some of them out so it can support a seedling. I did this as my first soil grow just to see if I had potential as a grower, and all I did was add water from start to finish. I got only about 1.5 ounces off of it, but nonetheless it still worked fine. Using MG straight up without cutting it will almost always cause burns. Hope this helps. Peace.