Ph testing coco coir

ya for me forgetting silica is like a curse , , ,and then 4 week into flower i go fuck, everything is limping from growth

what do you you for your coco, i use botanica silica blast, i have heard there is some better forms, more friendly forms of water soluble silica but i forget what they are called

that's what I have

I use the dynagrow version, very sparingly. Mixes well in a 5 gallon bucket of nutes, even when I add it last to bring pH up.

This is just off completely. You want a steady 5.8 ph period, 5.5-6.2 is absolutely way too broad and nutrients easily get locked out at the extremes here. Do run off if you want to push your plants with nutrients without frying them or getting lockout. 14 days is way too long of a flush in my opinion and will affect resin content, density, visual appeal, and overall quality. Ramp down feeding for a week and flush the last....you will be great.

Say if you're having a zinc deficiency. Zn is best absored at ph 5.5, so could you lower the input to 5.5 in 2 week of flower for more Zn?

in coco 5.5 to 6.2 is ok but 5.8 is king of the mountain, i know many who feed at 5.5 and let swing to 6.2 and feed again and adjust there feeding amounts to coincide with natural swing

burgertime2010 said:

This is just off completely. You want a steady 5.8 ph period, 5.5-6.2 is absolutely way too broad and nutrients easily get locked out at the extremes here. Do run off if you want to push your plants with nutrients without frying them or getting lockout. 14 days is way too long of a flush in my opinion and will affect resin content, density, visual appeal, and overall quality. Ramp down feeding for a week and flush the last....you will be great.

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i never do run off i have trays they sit in that they never leave over a month peroid depending how long i have em, they are green as lush


ill see if can find a better chart

notice it says non che lated . . . .i use che lated base nutrients , all i have to do is match the sweet spot of 5.5, 6.2 and i get it all organics(organics, derived from bennies ,made for hydro/ better in coco), and my chelateds

I want my pH to swing, as long as it stays in range. Keeping it 5.8 is impossible and a waste of time. I mix 5 gallons of nutes at a time but I'm not about to count drops of pH down.

I used to have a huge vacancy in my understanding of pH in the root zone. I have just discovered that whatever my rez ph is, when i feed, is what my root-zone pH stays at- even though my rez will swing . I now think this, because i take root-zone samples of my coco. I have also noticed, from testing samples, that my RZ pH will rise during the dark period only to fall back to normal levels shortly after the lights turn back on. For example: 5.8 to 6.3 to 5.8

BTW, if you are looking for a coco coir that is user friendly find one that is RHP certified- it is rinsed in freshwater, not saltwater, and Ca Mg buffered)

Somewhat off topic. But I need to start my 2nd 4x4 tent and spread these kids out.. I am currently in gravel in planters in a 4x4 tent with 13 plants and wanting to scrog. I have them under 600 watts using ebb and flow. The gravel I bought was not the pea gravel I was promised and after a nightmare of trying to wash this crap I have become interested in the coco coir and picked up some 2'x2' x 1/2 " coco coir planter liners. I was wondering if I could lay down a couple of layers of these in flood table in my second tent and just plop my 4" rockwell cubes and assorted roots down on top of this medium after removing them from the gravel. Yes ? no? maybe? If yes how thick would the coco need to be under the plants in the grotek table? plants are currently about 24" and I have been LST ing them. Advice and thoughts are welcomed.
Peace

so whats the best for testing the ph,testing the water run off or in the coco? i dont like the thought of digging a stake near any roots so ive got one for the nutes and run off,this is ok isnt it?