Same plant a few weeks later.

One more

Not 100% sure, but check out pics of plants with calcium deficiency....

Yeah I was kind of thinking that also but I canâÂÂt explain how one plant out of thirty or so would be calcium deficient. I used the same mix, fert, and lighting for all of them. My only other guess, other than just a bad seed, would be that it got "sun" burnt when it was very very young and never fully recovered? But I am not sure if that is possible or not.

Personally I would not worry. Looks to me like it wants no take off post another pic. in a week or so ,Ill bet it will be fine. What fert. do you use? Most dont have Ca. in them.Is there lime in your soil? Those top leaves look like they are getting larger good thing

You would not believe how hard it is for me to find a fert with ca in it around me. The only thing I could find this year is espoma biotone seed starter plus. It is organic though and I am not sure how well it will work in containers. I am going to add lime to my mix this year. Do you have any recommendations ?

Thanks,
Scottt

For me to give a quick shot of calcium I use calcium nitrate. Works well!

where do you get calcium nitrate?