P.H control

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rabbit229

Active Member
got a problem with my nft system the ph keeps on rising every day
i just bought a larger water tank but still have the P.H problem. what would help? every time i lower it to 5.8 the next day will be 6.8 and if i was to leave it for another day it will go 7+
how can i stabilise it much help needed thanks
 
203ct240

203ct240

Member
As your plants use up nutes your PH will change. This is a common misconception of hydro. People think that you just mix some nutes and leave them. Hydro requires constant monitoring. I check and balance my PH about every two days.

Do you have any pictures? How old are they? Do you know how much they drink a day?
 
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ianb

Member
I've heard if you use tap water it will fluctuate a great deal. RO (reverse osmosis) water apparently stays much more constant. I use tap water and i'm in the same boat as you. Someone with RO water should chime in on this one.
 
tea tree

tea tree

Well-Known Member
I am having this prob myself. I am reading the ask lucas thread at cannabis world and he suggests that ppm maybe low as ferts lower ph. So maybe up the ppm a little? As your plants eat the water gets less acidic due to nute loss. What is you ppm level and nutes?
 
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rabbit229

Active Member
tea tree said:
I am having this prob myself. I am reading the ask lucas thread at cannabis world and he suggests that ppm maybe low as ferts lower ph. So maybe up the ppm a little? As your plants eat the water gets less acidic due to nute loss. What is you ppm level and nutes?
Click to expand...
ppm was 0.8 they are baby they have been in the system for a week now, so i have just flushed for 2hours with just ph water at 5.5 and a drop of h202 now i have re done my tank and its set at 1200ppm and ph is 5.7 lets see how things go tomorrow
 
203ct240

203ct240

Member
I use tap water my self and have not had a problem really. PH fluctuating a little bit wont do any harm. How much does it change in a day? How are you mixing your nutes?
 
jcdws602

jcdws602

Well-Known Member
........everybody's tap water is different...... depending where your located.....I know when I used tap water my ph fluctuated like crazy......that causes problems in hydroponics...aero....I don't have to adjust my ph but once maybe twice every res change....I use ro water......
 
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