Help, Browning seedling leaf tips?

[GaryGardener]

FNG here. Any thoughts are appreciated. Why the color change? These are auto flowers for the 1st time grower.
Do these leaves seem droopy?
Thanks in advance.

 

[Harpua88]

Have you fed them anything?

 

[GaryGardener]

Fox Farm Big Bloom 1 tsp per gallon.
Spider SF 1000 about 18" for 18 hours.

 

[Captspaulding]

Overwatered. A seedling that is sprouted healthy, comes with more than enough of the nutrients it needs all the way until veg, in my experience introducing nutrients so soon is counterintuitive.

 

[Captspaulding]

FNG here. Any thoughts are appreciated. Why the color change? These are auto flowers for the 1st time grower.
Do these leaves seem droopy?
Thanks in advance.

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Your leaves are droopy, because the leaves can’t breath. So increase airflow around them, and don’t let them sit in water like that. Just be diligent making sure they stay moist.

 

[Harpua88]

Are you having them always sit in water and nutrients? I don't know how much you're feeding them/what ratio that means in terms of strength. It could be too much. When are you planning on transplanting? Looks like rockwool cubes? What will you be transplanting in to?