COCO Impossible to properly PH!! Hate it...

D

davegc

New Member
Snow Crash said:
The Lime doesn't "raise" pH as much as buffer it to a consistent level. It should hold the pH right around 6.8 to 7.0.
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I'm using Roots Organics Cocopalms, which says it's naturally buffered with lime powder. My tap water is around 90 EC and 7-8 ph.
I'm new and apparently missing something. Everything I've read says to keep the ph in the 5.5-6.5 range with coco.
The roots organics site says "Roots Organics Cocopalms has a near perfect natural pH level (5.2 to 6.3) for optimum nutrient uptake..."
I've poured 30 gallons of ph 4-4.5 water through the 6 gallon planter, and I cannot get the runoff below 6.7ph.

I thought I somehow might have "broken" the coco in my 6 gallon pot, so I started from scratch. Fresh, fluffy coco from the bag into a pot. Fresh ph-downed (to 4.0) water. I still get 6.7-6.8 runoff, as your bolded statement says. Why "should it hold" the ph outside of the usable range?

wtf?
 
Last edited:
ismann

ismann

Well-Known Member
99% of the time coco issues are cal-mag or pH going in. You have to buffer coco by soaking it in water + cal-mag over night (after rinsing the shit out of it - I don't care what brand coco it is). Other than that, I've only ever used GH Flora micro, bloom (Lucas formula) + cal-mag and pH in between 5.5 and 6.5 and never had any issues. My run off is maybe 10-20% and never pH what comes out... no need.
 
PJ Diaz

PJ Diaz

Well-Known Member
davegc said:
I'm using Roots Organics Cocopalms, which says it's naturally buffered with lime powder. My tap water is around 90 EC and 7-8 ph.
I'm new and apparently missing something. Everything I've read says to keep the ph in the 5.5-6.5 range with coco.
The roots organics site says "Roots Organics Cocopalms has a near perfect natural pH level (5.2 to 6.3) for optimum nutrient uptake..."
I've poured 30 gallons of ph 4-4.5 water through the 6 gallon planter, and I cannot get the runoff below 6.7ph.

I thought I somehow might have "broken" the coco in my 6 gallon pot, so I started from scratch. Fresh, fluffy coco from the bag into a pot. Fresh ph-downed (to 4.0) water. I still get 6.7-6.8 runoff, as your bolded statement says. Why "should it hold" the ph outside of the usable range?

wtf?
Click to expand...
Putting lime into coco seems backwards to me. I'd get a different brand of coco.
 
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