Who can help me, I have a problem with the yellowing of the buds and the burning of the pistils

[ildo]

who knows how to calibrate a bluelab ph pen?

 

[ildo]

I use filtered water ph water 000-004

 

[Bill284]

I use filtered water ph water 000-004

Do you have the solution that comes with it to calibrate it?




#VIVOSUN #Love What You Grow
Bill284

 

[ildo]

yes, but there it says that you need ph 7 solution first, then ph 4, but I have a water filter, but with EC 000-004, but to measure ph well, which solution is needed first, ph 4 or ph 7

 

[Bill284]

Quicker than me doing it.

#VIVOSUN #Love What You Grow
Bill284

 

[ildo]