For the past 36 hours now I have had my clones in my aeroponic system.

For the first 12-14 hours or so I did not have any meters yet and so the ph was around 8.6 and the ppm around 400.

I have been keeping the ph between 5.2-5.8 but in the past 6 hours it rose to 6.7!

I have been reading my eyes out of my skull it seems and I have found that my filter mounted on my tap might be contributing to a high ph due to the water softening process, so I have put a gallon of tap water plus 5ml / gal of liquid earth's vigor and grow.

The ppm right now is at 690 and the ph is at 5.6.

Is this highly volatile ph dangerous to my plants if I can keep it within 5.0-6.0?

I have been following MVP's thread about his grow and I am thinking if the ph does not stabilize as I flush using plain tap water I am going to switch to completely RO and 300 ppm of calmag. Does that sound about right?

It is hard to diagnose these issues by looking at the plants, because when I picked them up they already had some discoloration and wilting; but I have attached a couple pictures just in case someone might spot something I missed.

My girlfriend says I need to be patient with them, let them adapt to 400 hps and nutrients and whatnot but moving from flouros to hps shouldn't cause this constant rising in ph, should it?

Thanks for the comments
cmasfca Reviewed by cmasfca on . Ph is rising, can't seem to stabilize For the past 36 hours now I have had my clones in my aeroponic system. For the first 12-14 hours or so I did not have any meters yet and so the ph was around 8.6 and the ppm around 400. I have been keeping the ph between 5.2-5.8 but in the past 6 hours it rose to 6.7! I have been reading my eyes out of my skull it seems and I have found that my filter mounted on my tap might be contributing to a high ph due to the water softening process, so I have put a gallon of tap water plus 5ml / Rating: 5