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PPM keeps dropping 2 wk flower

Hiya
Heres my Strawberry Cough 16 days 12/12. She looks fine except i was at about 800 for veg nutes, since then it keeps rising 100 or so, so bring it down a little, it goes up, i bring it down and so on. Eg last time, 758 up to 840 over 12 hours, so shes at 650 now, and it will probably rise again.
Ph very stable 5.9-6.4
My first time with a photo (normally do autos), does this seem normal, i mean she should be sucking up more nutes if anything...? Shes gonna be down to like 200 at this...

PPM keeps dropping 2 wk flower


from Hydroponics / Aeroponics https://www.rollitup.org/t/ppm-keeps-dropping-2-wk-flower.1021720/

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