The Grow Awards 2026 π 
Nute butn or PH lockout?
Adam_Pipfreystarted grow question 4y ago
16d Runtz auto
Yesterday I flushed her with 5.8ph water - runoff was 6.3
I grow 60% coco and 40% biobizz light mix (soil/perlite) I've been told by a grower to aim at a ph of 6 and not water until runoff due to my medium composition. Someone also said N deficiency.
Help please :(
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Fruitgroweranswered grow question 4y ago
Ok. So like I said before. You're going to have to treat it like coco because of the high ratio. For future buddy it makes much more sense to add a smaller amount of coco to the soil to "lighten it up" a bit. Or grow in coco OR soil. Because coco absorbs nutrients in the ph range of 5.5-6 (5.8 being the aim ) and need to be Watered more frequently than soil. Soil on the other hand can vary from sandy,chalky, peat and sometimes contains nutrients. But absorbs nutrients at a slightly higher ph of 6-7 and is much more forgiving regarding ph. You are seeing some nutrients problems, so increase slightly your feed. Add some calmag too ASAP and make sure you're measuring and adjusting your ph! ππ±
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