ph creep

Hi everybody! I am having some trouble with keeping my reservoir PH stable. I have "flushed" her twice (with PH-d clean water) since the problem started (few weeks ago) and yesterday, between the res. change, I was going to clean the tank as well, but it was very clean inside and I decided not...

Hey all, I've been trying for weeks to figure out what is causing the ph in my res to constantly rise and after about 10 different tests on water at every stage in the system I've narrowed it down to the medium and/or something in the bucket with it. Just to let people know it is a 4 bucket...

Hi I am in my second week of my first aeroponic grow in a grow box. Did a lot in soil outside but life takes you elsewhere and you change grow style. I follow the GHE chart and after adding the nutrients my PPM is 250 and in 2/3 days drops to 80. Isn't that low? The other annoyance is the PH...

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