If ph is ok then it’s likely root or nutrient related. It looks like it’s very hungry. Sorry it’s been so long replying. Don’t get much internet time with my job. How do they look now?
i cant remember who, but a member here posted this, and i found it useful to use to get the info folks here like
1. Are you growing from seed or clones?
2. How old are your plants?
3. How tall are your plants?
4. What size containers are they planted in?
5. What is your soil mix?
6. How...
But how long has it been in that 3 gallon pot? They look way to bad right now. Let’s figure out the issue then flip. If you do it now without fixing the problem it could be very disappointing later. They look really hungry to me. All of em.
You can do that. Or you take some of your medium and put it in a cup of phd water and make a slurry then dip your ph meter in it. But if you do the run off way remember what you put in and if it’s different then what you put in let us know.