when using a pre-fertilized soil, such as the Miracle-Grow, etc., you just have to remember, your plants shouldn't need more ferts added until flowering, if at all ... that's really the problem with it, as it limits your ability to 'fine-tune' nutes for a particular period in the plant's growth ... (hard to cut back nitrogen during flowering, for example, since it's already 'there' in the soil) ... if you used just the MG soil, without added nutes, you would 'likely' have healthy plants, but not likely to achieve their potential ... the absolute BEST plants I have ever seen, are grown outdoors annually, in an earthworm-casting rich, composted soil, adding nothing but MiracleGro fertilizer, once weekly ... (I would post pics, but have promised not to) ... one word: MONSTERS, with not one single, yellow or pale leaf, NO burning, etc. ... Miracle-Grow isn't a bad product, it's just usually mis-used ... :smokin: