ph problem

[The Herbalist]

I'm running 3 individual power growers,800w growzilla with technaflora nutrients ,co2 enrichment,temp. is 76.2. Ph is adjusted to 6.2 and then over night the ph goes down to 5.3. Crazy right! Only started happenning when I added co2. Really don't know what the problem is. OG's out there please help.

 

[Hippo]

Does it settle at 5.3 ?
5.3 in hydro imho isnt a problem, i set mine between 5.2 and 6.0 usually, it tends to rise up over the next day or so to about 5.8.
Are the plants showing any signs of the ph not being right? are they feeding ok?
Wat is the humidity like in the room?, was this also affected when u added C02 ? (as in did u seal the room when u added C02?)


Hippo

 

[The Herbalist]

The room was sealed and the plants don't show signs of nutrient deficiencies, but they do show signs of ph shift with a few leaves having necrosis of the leaf.