I noticed light green discoloration in the new growth

Greeting growers,
These two plants don’t seem to like anything I’m trying to feed them, they were overfed than re-fed and 550 ppm, run off is 769 ppm . PH is good I noticed a fungus gnat flying around ( just 1) and I plan on applying TNliN drops tomorrow with my feeding. What kind of deficiencies are they illustrating? or could this be a Root problem. They show burn mew growth leaf tips, I’m just trying to get them to bounce back. Last ph feeding was at 5.9.

Thanks for the help in advance and happy growing year !!

the ph is not good the plants are showing that what are you growing in and how do you check ph

onegreenthumb said:

the ph is not good the plants are showing that what are you growing in and how do you check ph

Click to expand...

Blue lab pH

pH is where I'd start. What are you growing in? What are you pH'ing your feeds / water to?