What's the problem?????

Ive just popped some diesel berry auto with runtz auto in coco and they look like they dying in week 2. They were healty when they were in the starter pots under blue light but After i did change in the grow they start to stop growing and the yellowed a bit after a transplant from seed starter size pot along with lamp change from a blue led spectrum mars hydro epistar light to a full spectrum tsl 2000. I know this could stress them a bit but the yellowing part i dont really know?.. After i saw them yellowing i tought it could be a deficiency so i put a little dose of cal mag at 0.5ml in a 1.6 liters of water. The pics are 2 days after the shoot and 4 days after transplant/light swap. There is photoperiod plants and hot peppers next to them a except the feeding they ve been in the same condition and theyre doing well. Someone knows whats up with these??

Start over. use soil.

Looks like it needs feeding, not just calmag. Could you have over watered or have a PH that's out of wack?

I let mine get much bigger than that in red solo cups before transplanting. It's easier to monitor their drinking. I never tried coco because it is too much work for me from what I read on here. Every professional greenhouse I have been in uses Pro Mix. I have never seen one that uses coco.

Capn-Crunch said:

Looks like it needs feeding, not just calmag. Could you have over watered or have a PH that's out of wack?

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im not sure if its need feeding or the cal mag overfed them but yeah it could be my ph since my ph pen is busted so i let them a at the stock 7.2 ùfrom the tap or maybe one drop of down in a 6l bucket of water just to drop the ph a bit.

70's natureboy said:

I let mine get much bigger than that in red solo cups before transplanting. It's easier to monitor their drinking. I never tried coco because it is too much work for me from what I read on here. Every professional greenhouse I have been in uses Pro Mix. I have never seen one that uses coco.

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the first grow i did in this tent was blue dream auto from hso in coco and i started them from the begining to harvest in the fabric pots to take the transplant stress away and they did great so i dont think it could be an issue and i did 1 liters of water each and waited till its dry to water them.. maybe i could of waited more to transplant them from the seed starter pots to reduce the stress but it dont explain the yellowing.