smoke24answered grow question 4 years ago Your diary says you are growing in soil, if that is the case, I wouldn't be adding additional nutrients at this point, because the soil has plenty already in it to support life for a solid month. Also 19 inches is a little close for your light at this stage of growth, I would back it off 6 inches. Water only when top inch of soil is dry and keep soil ph in the 6.5-6.8 range (soil), or around 6 for soiless (promix, coco, etc. ) Happy growing.