Ok Im using a drip system 18 plants
water twice a day one at 845am the other at 420pm
the roots are not touching the RES water yet but their getting close

so your saying its better to wait untill the lights turn on to chagne the PH
so from 845am to 1200am the RES water is going to have an unblanced PH
isn't that goin to be bad for the roots when they start touching the RES water?

what if I could change the PH with only allowing little (and very light) light?
Jmann567 Reviewed by Jmann567 on . Need Help! PPM/PH problem Everytime after watering the PPM goes up. The reason being that the plants absorb more water than nutrient Im assuming. My question is should I add water to the RES to keep the PPM the same throughout the week even if the PPM went up a little bit or only if it goes up a lot? Another thing that Im worried about is that Im starting flowering next week and the lights are going to be off from 12am to 12 pm and watering comes on at 8 45am. So after it waters I need to adjust the PH. Would it Rating: 5