Dwc help, yellowing seedlings

Sidbilly

New Member
My 4 girls look decent but I noticed some of their bottom leaves yellowing. They have been in dwc buckets for almost two weeks. Ph stays between 5.8-6.5, ppm 300 (120 tap water) some grotek kickstart and a little calmag also some uc roots for sterilization. Water temps at 72f. Hopefully someone can give me some advice as they seems to be growing slow and I still haven’t had any roots drop to the bucket yet. Feeding from the top 15 min on and 30 min off. Thanks here are some pics
 

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I thought I answered this

even 15 seconds at this stage is waaaaaaay too long. I wouldn't do that in full bloom

Heres my 3+ week ld roots from seed

3 SECONDS on ~ 60 minutes offIMG_4199.JPG IMG_4200.JPG
 
raise the ppm to 600. after a while raise it some more. you're probably going to use around 1000 ppm max as time goes on.
 
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