Hi all,
I recently decided to step my grow up a gear finally and purchased a quality digital PH meter.
So i calibrated the meter with 7.01 solution then tested my tap water. The results came back as 7.6 (obviously too high?) after adding my veg nutes: 1ml/L biogrow and 2ml/L bioheaven and a sprinkle of Epsom salts the ph was reduced down to 6.8 which sounds about right to me for soil. Please correct if im wrong still learning!

Because i don't feed nutes every watering does this mean i need to ammend the ph of my plain water? and if so which is the best way of doin it (bar buying distilled water)

Thanks in advanced for any responses.
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should be 6.0 or 6.2 between there bro

some ppl leave it at 7.0 but for clones u want it 5.9-6.0 bro

yes geeze! cheers for the quick reply... so what would you use to ammend the ph? some people have said the ph up/ down can add unwanted chemicals to grows is there anoher more natural way to get the desired ph?
cheers bb420

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i use fish p.h less bs

whats this fish ph? is it just an acidic solution? any links? sorry for all the questions pal..

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whats goin on here??????????? hydro 5.6-6.0(5.8............soil 6.5-7.0(6.8


clones have nuthing to do with what the ph should be

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heres a chart ph chart that shows nutrients avaiblity, i found along my travels...

Attached Images

2 PH chart Jpeg..JPG (52.6 KB, 70 views)

right so 6.5 is what i should be aiming for with plain water and with water with nutes in when im grownig in soil. cheers for that chart Leafs.Rule.75 very helpful mayne
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good call on the chart ive seen it around b4 but forgot about it


i always run my soil around 6.8 and have no problems but by the chart it looks like 6.5 is what to shoot for


acctually from the chart 6.5 looks to low to uptake mg and ca and p which are used a lot during flowering

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