Hi guys, this is my first post, maybe someone is able to shed some light on this issue.
I've been a grower for the past 5 years and always managed to find a solution when pH is increasing or decreasing, HOWEVER in this particular grow I am completely out of ideas of what is causing such issue.
Basically pH drops on a daily basis from 5.8-6.0 down to 4.1-4.4. This issue starts after 4-6 hours when I pH adjust the water or replace the water completely is stay stable for that amount of time and then boom starts to decrease 0.1 at a time until it stays fixed at 4.1-4.4.
So my setup -
x2 Green Gelato & 6weeks old (veg)
DWC with RO water
x2 spider farmer sf-4000 @100% intensity 18-6
Full range of ghe nutes
Chiller set at 18c
Tetra airpump pushing 300l/hr
Solutions I tried which didn't work -
Increase/decrease nutrients
Increase/decrease water temp
Increase/decrease air temp
Increase/decrease humidity
Increase/decrease ppfd or height of the leds
Added tap water 75/25 ro (pretty bad at 1.6ec straight out of the tap)
Added baking soda
Added pH up
Reduce air pump flow
Active carbon in the res
Cleaned all pipes/chiller and res from residue
Solutions I'm currently trying today
Reduce light intensity
Solutions I will trying if it doesn't work
Replace nutrient brand to plagron/Advanced hydro
Replace the airstones to new smaller ones
Any possible help you can provide please go ahead as I'm out of ideas what it might be
I've been a grower for the past 5 years and always managed to find a solution when pH is increasing or decreasing, HOWEVER in this particular grow I am completely out of ideas of what is causing such issue.
Basically pH drops on a daily basis from 5.8-6.0 down to 4.1-4.4. This issue starts after 4-6 hours when I pH adjust the water or replace the water completely is stay stable for that amount of time and then boom starts to decrease 0.1 at a time until it stays fixed at 4.1-4.4.
So my setup -
x2 Green Gelato & 6weeks old (veg)
DWC with RO water
x2 spider farmer sf-4000 @100% intensity 18-6
Full range of ghe nutes
Chiller set at 18c
Tetra airpump pushing 300l/hr
Solutions I tried which didn't work -
Increase/decrease nutrients
Increase/decrease water temp
Increase/decrease air temp
Increase/decrease humidity
Increase/decrease ppfd or height of the leds
Added tap water 75/25 ro (pretty bad at 1.6ec straight out of the tap)
Added baking soda
Added pH up
Reduce air pump flow
Active carbon in the res
Cleaned all pipes/chiller and res from residue
Solutions I'm currently trying today
Reduce light intensity
Solutions I will trying if it doesn't work
Replace nutrient brand to plagron/Advanced hydro
Replace the airstones to new smaller ones
Any possible help you can provide please go ahead as I'm out of ideas what it might be
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