It's my first growth with Coco.I want to try the Lucas formula,anybody still use it?The mixture I was wondering is mixing 6 ml micro, 9 ml flower 1 gallon (3.78 liters). So, do we add more water to this?
@BossHawk is right on. 1:2 ratio Great formula when I run out of my Canna nutes I'm going back to it.
As far as I understand the vegetative stage is 2 ml micro bloom into 1 gallon. Flower stage 8ml micro 16ml bloom.
That's the original Lucas. The lucas formula was changed and adjusted years ago by a guy named H3ad when growing in coco. 6ml micro/9ml bloom. OP, you might consider just using GH MaxiBloom for your coco grow - it's simple and inexpensive and it works perfect. 7 grams per gallon of tap water is considered close to the lucas formula. Good luck.
General Hydroponics MaxiBloom for Gardening, 2.2-Pound www.amazon.com/dp/B00NXVZQUW/ref=cm_sw_r_cp_apa_i_7wxdDbWQY39ZT I just ordered mine everybody seems to like it.