After I rinsed my Coco from a brick and then let it sit in a mixture of Cal mag solution  that was ph'd at 6, my ph on my Coco was still at barely 4. How do I get my ph up in my grow medium which is Coco Coir and perlite? 
							
						
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I rehydrate my bricks using 2g CaNit/gal and 1g Epsom salt/g.
With my well water, it usually starts @ 6.5ph.
I let that soak overnight, drain and mix in about 25% perlite and into my storage tote.
I just ph my nutes to 6.0 and feed to run-off.
Works perfectly. I don't even look at run-off ph/ec.WHAT???
5x5 grow space
900w of Vero's and F-strips
4-17gal totes self-made UC system.
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Welcome to the forum! I too, am fairly new. Personally (and I won't take offense if anyone disagrees) but I wouldn't sweat it. You've got your coco/perlite charged. I use the prepackaged coco/perlite mixture...I never even considered what the PH was before I put a seedling in.
If I may be so bold, to recommend you put your setup in your "Byline". It will aid others to help you out.A Legend...in his own mind - , 48" X 60" X 80" 2-in-1 Grow Tent, Flower light: Vivaspectra P2500 LED. Veg light: Mars Hydro TS600 & Mars Hydro TS1000 LED lights. Nutrients: GH Flora Trio/Calmag coco/perlite, GH PH Down or pure lemon juice, in case PH down isn't available.
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