Could it be the pheno?

I have 4 Nirvana Snow White and 5 Ice in a tent under a 400w. They all receive identical nutes (FF) and I rotate them to control bending towards the light. They're 5.5 weeks into flower, about 40 in. (on avg), and one of the Snow whites is yellowing on several leaves. Since they get identical treatment, could the yellowing just be due to the phenotype?

cudnt say anything without seeing any pics of the yellowing leaves

I'm not asking about the cause, just whether it's possible that with identical treatment a pheno would suffer whereas others don't.

I'm reluctant to post pix. Other sites, more info out on the web (which never goes away), I'm not a fan. Info is like rope, feed more out, and it easier to get hanged.

I do understand the sentiment and appreciate the offer to help diagnose.

Yes, the yellowing could just be down to the pheno. When growing from seed, there will always be some variation, and some plants can be more hungry than others.

As for posting pics, I really wouldn't worry, unless you are planning on posting your name and address alongside them.

Can you post them on the site itself vs. using photobucket?

Yes, just click the "manage attachments" option in the advanced reply box, then the "add files" option.

Edit: Or the "insert image" button in the quick reply box, then select "add files" in the "from computer" tab.