Seedling issue

Day 12, soil, 600watt MH at 50% and about 30 inches, watering with ph6.0 water, soil ph is pretty steady at 6.9, Chem Dawg strain. Already had some light burn due to not having weaker lights to start them and failing to ensure proper measurements.

Looking good .

Budzbuddha said:

Looking good .

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I thought the browning/yellowing on the tips was abnormal? That was the best pic I could get, so maybe it's not very clear. I am currently suspecting either delayed damage from the light burn or nutrient toxicity but I'm looking for confirmation of the issue before I drown the roots as I would rather not compound the issue with overwatering, but I would like to solve the problem before it's a major problem.

EDIT: I also thought it might be a calcium deficiency. Like I said I'm a kind of new grower, certainly I'm new to growing cannabis, and so besides being overly worried I don't yet know how to properly diagnose issues although I know how to treat them once I have confirmation.

Looks fine to me

SolidMode said:

drown the roots

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SolidMode said:

compound the issue

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You sorta answered your own question a bit right there....
Seedlings require FAR, FAR less water than many growers are willing to accept.
I start my seeds in solo cups of very lightly nuted WET coco, and in all honesty Im not even sure how long before they get ANY water, let alone nutrients, could be 10 days or more I'd imagine...Nothing at all goes into them until the cup is super light....

The damage you are seeing is from the light. It won't recover, but it's the first set of leaves anyhow. You'll clip them in a few weeks or they will fall off as you adjust feed.