Thanks for the reply cookin.. Thats what I'd hoped for but you're post has made me think of a couple of more questions.. The Canna charts work by giving the amount of nutes per 10L. I can make this amount and keep it in a drum and dip my can in the drum daily but will the feed spoil if left in the drum for a while? Also, I've never flushed a crop during a grow, only at the end. If I were to flush once a week would it literaly just be a case of watering with only water one day a week? Sorry if these Q's make me sound simple! Your right about the rock wool it dries very quickly, I was watering everyday but found it easier to control than soil (the harvest was a cracker for a first grow, but i've heard a few people heaping praise on Coco). Thanks for the welcome Boneman. I had a peak at the PPP and AK-47 grow. Very nice indeed. Thanks again!