help with ph

[denske]

well i got a ph testa, i had a soil probe but have got a liquard one now,, my tap water is about 7.4,, my resouvoir is about 7.2,, i have only got a weak nutes mix in there,, i was at the hydro shop today and am now spewin i didnt get some ph down, do i need this stuff, ant other tricks or tips,, an is this ph too high or will they be ok?? over to u guys,

[Tom]

I run my hydro at 6.3, and that is considered a touch high by some growers.

 

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[denske]

i just went an made a full strenth mix of nutes, the ph of that was between 6.2,6.3, i might get some ph down, it couldnt hurt to have around i spose, some of my plants ive been feeding a weaker mix of nutes, some ive been making a full mix, an watering them seperatly, my older plants are loving it , i also got my new lamp today, a brandspanking new sontagro, i got to keep the older light too, it was a lucalox, might come in handy if i get a blowout,, overanout

[Tom]

My plants have no problem coping with 6.3, but I agree that some ph down is necessary, you still need to be able to flush them with ph corrected aged water.

 

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[Guest weekprik]

i too try to keep mine at 6.3 but with one brand of nutes this meant adding ph down EVERY day, I reakon thats bad as if i keep adding ph down wont the exess chem cause problems?? or can i not have too much ph adjuster in the nutes.

[hydrodude]

When u add it make sure u add it 1 drop at a time untill u are used to seeing how it changes the levels. I came really cloes to messing up a resi when i started :-)

 

I ahve herd that u can use viniger to to lower levels if u dont have any Ph Down. I used hydrocloric acid (pool acid) for about a week with out any noticable effect.

[Guest weekprik]

pool acid didnt hurt ya plants???

[hydrodude]

I didnt see any effects but everyone was encouraging me to go and get some phosphuric acid :-)

[wassily]

I run mine at 6.4, but that's with a bio mix of nutrients. I let it cycle up to 6.8,

then reset it. But with salt ferts I used to go about 6.5 for veg and about 6.0 for flower. Nimer's right about going easy with the phosphorid acid. It drops ph quite a bit, and you can fuck up your res easily. I only found this out when I got a digital ph meter.

Vazzy