Coco issues....

Loolagigi2

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Hi all. My medium is coco perlite mix. I am feeding 500 ppm with a ph of 5.9. Some of my 2 week old seedlings are showing these pale white areas on the leaf. My runoff is 700 ppm and a ph of 5.9. Should I add more cal mag, or maybe up my ph a bit? maybe they need more nitrogen? Add Epson salts? I am at a loss. thank you.

Update, I just hit them with a heavier cal mag, super light feeding phed at 6.1. Ill hopefully know more in the morning. I also did a manual ph test just to make sure my ph pen was accurate, and it's fine.
 

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Loolagigi2

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Well I think it worked. Seems raising the ph helped. Another issue they were showing last night was the leafs were curling down as if they were over watered, but I watered them twice after, and turned my light down from 50% to 20% and this afternoon they are screaming towards the light. Finicky little buggers.
 

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