Help needed

[Sonnyhad]

These 2 plants are of the same strain. Cronic auto flower. All the other plants are looking fine and I water them all the same according to their age and stage. I use Cal Mag in their feed and try to keep the ph around 6.5 going in. Its growing in ProMix . If someone could let me know what to do , I would appreciate it! I just watered them yesterday.

 

[kingfish]

I would stop feeding Cal Mag. Looks like they might had too much.

 

[Royal Nugs]

Looks like nitrogen deficiency. You're too far into flower to start adding extra nitrogen. I'd pluck those yellow leaves and keep going.

What base nutrients are you using?

Since all the other plants are fine, I wouldn't worry too much.

 

[Sonnyhad]

Looks like nitrogen deficiency. You're too far into flower to start adding extra nitrogen. I'd pluck those yellow leaves and keep going.

What base nutrients are you using?

Since all the other plants are fine, I wouldn't worry too much.

I'm using general hydroponics, trio. its mostly in the center of the plant, where I opened it up for LST

 

[NebulaHaze]

I read on the ProMix website that they recommend keeping the pH between 5.5-6.5 with ProMix. Maybe try giving them water at 5.5 or 6.0 pH and see if that helps clear up the problem? It also can't hurt to measure the pH of the water coming out the bottom, just to see if it's coming out a lot higher or lower than the correct range. Some strains are really sensitive to pH, while others are a lot more hardy. Is there anything else besides strain different about these two plants compared to the other ones?

They do look like they're sort of getting low levels of nutrients in general, how much nutrients are you giving them? This is the schedule I follow with Flora trio in a soilless medium just as a reference. How often are you watering them, and how close are they to the light? What's the temperature in there?

Looks like quite a few buds in there, and it sounds like you've got lots of other plants too

 

[Sonnyhad]

Nebula, I am using the flora trio. But I don't use it ful strength close but usually a little shy. Lately I only fed one week with just Ph'd water. I see where some people only use nutes every other feeding. I usually water when the containers get light, so the plants are just about dry, the leaves aren't droopy yet, that takes about 4 days, sometimes 5 days. I try to add cal mag every time as well but I might have missed a few I'm not sure. My ph coming out is usually between 6 and 6.5. I really appreciate and respect your advise!! Thank you very much for your time and effort on this forum and website!