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Nute butn or PH lockout?
Adam_Pipfreystarted grow question 2 years 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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m0useanswered grow question 2 years ago
BioBIzz light mix is comprised of Peat moss, Sphagnum peat and Perlite
add coir into that and its soilless not soil.
Using liquid nutes in soilless PH should be around 5.5-6.2 range.
Coir is also void of nutrients and if its not buffered it will rob your feed of calcium and magnesium.
I'd suggest adding in some calmg and following the feeding schedules of Sensi coco grow A and B.
all the ph fluxing could be causing some of what you are seeing right now.
Yellow from the inside out on new growth is also pointing towards signs of it needing Iron.
I'd also invest in a TDS pen. You should know your EC/PPM of your feeding solution and runoff.
Try some of these steps and see how it fares in the next week.
Fruitgroweranswered grow question 2 years 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! 👍🌱
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m0useanswered grow question 2 years ago
Let me know if you need any more help with this, you can use the DM feature.
Your inbox is the little green arrow at the bottom right of the screen.
Cheers,
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