I apologize if I'm asking too many questions. But there's a fine line between over feeding and under feeding right. And I can look at the leaves. What exactly am I looking forCorrect, with the assumption that you're adding according to some kind of feeding schedule that has good amounts. Otherwise when you're using nutrient rich soil you're adding nutrients to nutrients that are already in the soil and it's hard to tell what's already there and in what quantities. Also note that your plants will tell you if you're feeding too much or too little as well (pay attention to those leaves...).