Rapaid yellowing

if I were to guess perhaps too much p-k.. causing a lack of intake of N.. But N should be hard to lock with other nutrients.. Usually excess of one can look like deficiency of other. Ph might be a culprit here..

Yup that's a lock out laddy.. Sorry to agree with others.. Follow advice of others.. It's not the end of the things or anything.. Just caused by imbalance in the feed/medium... Have to do a bit or work and wait some time to figure out exactly what caused this...

you got the claw.. chances are trichome is right. it's far more common to overfeed than underfeed due to natural inclinations of every grower.. ever. check out my nute calculator that is linked in my profile comments. type in %'s from label (US standards for P/K). it can handle %w/w listed liquid nutes too -- upto 10 products, but can scale with simple instructions included. Anyway, if your N ppm is ~120, it's highly unlikely you are deficient in N, but pH and ratios of other competing elements and molecules are equially important. ph, concentrations, ratios.. providing nutrients is a science, not an art. i'm just a novice at figuring this stuff out at moment, too.

You look locked out fam. She seems to be fed to heavy and has just stopped taken up nutrition. Mabey a good little flush test run off ppm? Very high? Likely lock out.

You need to keep adding nutrients especially nitrogen, they definitely shouldn't be this yellow at this stage 👍🌱

That's alot of yellowing for 3 weeks in. I'd keep feeding. Still got a ways to go and it looks like they need it.. Happy growing! 🤟😜