E_heroi
Apr 22
Edited: Apr 22

Can you spot the problem ?

Hi everyone . i decided to make a small experiment with rockwool. i feed at 400ppm (500 scale) with a ph of 5.8 . the runoff ppm is 450 and the ph is 6.5 . temps are 24-25 with RH of 50-55 . here is the foto . its a northern lights auto









thanks

2 answers0 replies
1
Mr. Grow It
Apr 24

The camera makes it hard to see the true color of the plant. I think I see some yellowing on the leaves?

1
E_heroi
Apr 24

thanks Chris. actually i found out that i must water rockwool at least 5 times a day to avoid ph problems so i started doing this and things are looking better . last time i try rockwool its too much work if you water by hand . but thank you i wish you and your family all the best my friend