looks like average guess is 1 - 1.5 oz not bad to say all i use was (Phostrogen all purpose plant food) 14-10-27 I also used seaweed extract in flowering all for lest than a £5 and hardly used any. BUT!! thinking what difference some Big Bud neut would have made ????. Going to use that on my next ones its had way too many good reviews not to try it