herbertbrown
New member
Hi guy i have a question, i grow in coco and i always get a little calmag issue i use advanced nutrients sensi coco with ro water and after about 1-2 weeks i see the deficiencysxin early bloom i can see it also at 1.5ec . Is it because i fertilize on the low end at the vegetative phase? Ec at 1.2 would give me about 70ppm calcium. Does somebody know how much coco needs calcium? I use canna cocos which is pre buffered. Is it right if i have not enough calcium and Magnesium the coco steals so the cations stay filled but the plants cant absorb it because the coco gets it faster? If that is right i need to know how much calcium Magnesium is needed so i dont get the deficiencys all the time. Sorry for my bad english