Maybe someone can help me out as I have no clue what is causing this. Every day I fix my pH to between 5.8 - 6.3, the next day it always reads around 5 or even less every damn day for the past month.
Currently plant is on bloom phase (2 months old), been growing consistently without issues or signs of anything really, however I really want to understand why this is happening.
The only thing that keeps the pH stable is when I add bicarbonate of soda.
Below are some things might that might be helpful -
Strain - Golden Leaf (not auto) (ILGM)
GHE trio nutes with calmag as extra and voodoo juice at the moment
Ro water with around 100ppm to start (have to change the filters)
TDS currently on 1200 - 1300 ppm
Lightsx2 900w Kingbo Dual optical 60cm away
Temperature and humidity as per photo
Extractor running as per light schedule 12 hours on 12 hours off
Water temp set at 18c constantly
Solutions I tried - change water completely, reduce nutrients, reduce air pump flow, add tap water (extremely bad in my country running 1000ppm out of the tap so try to avoid as much as possible)
Thanks boys for any help!