I need to diagnose Karen. She has some spots on her. (25 day old plant)

Hey all. Have a question about plant problems.
I looked at a few graphics on nutrient deficiencies and came to a few conclusions, but since I'm new and there's a section for this I thought I would trust your eyes rather than mine.

This is my first ever grow.
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She was planted on Jan 16 or 17th and popped her head up on Jan 18th.
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~MEDIUM & NUTRIENTS
Using a hempy bucket w/ around 70% coco coir and 30% perlite.
Was using mega crop @ 1g per gal between Jan 18th - Feb 8th.
Since Feb 8th I've been using 4g per gal and 1g of epsom salt.

I started noticing the problems before I switched to 4g per gal.
I did basic LST on Feb 9th. She's very short and had a lot of baby leaves not getting light..
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~LIGHTING (60w)
4x 8w 5000k 800lm LED bulbs (w/ plastic covers taken off) (dollartree brand)
2x 14w 3000k 1500lm LED bulbs (w/ plastic covers taken off) (dollartree brand)
Planning on adding all 3000k bulbs whenever she starts to flower (this will be around 6-9 bulbs (my fixture has room for 9 bulbs))
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~ISSUE/PROBLEM

Leaves are kind of curling up. Slight discoloration and some brown spots.
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~TIMELAPSE (missed a few days, so it's not a 100% timelapse)


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Thanks for any feedback!

Oh, I'm watering about once every other day. Usually when the area @ the base feels dried out. Not sure how much water I'm using. Couple shot glasses maybe.

Looks like the beginning of calcium deficiency.

Thanks for the reply! Hopefully the increase in nutes will help add more calcium. Just started 4g not too long ago. Will see how shes doing with other leaves in a week or so. Not sure if the current leaves will correct themselves. From what I've read, mega crop is supposed to be a seedling/harvest nutrient. At least that's what others say, not sure why they're selling cal-mag on their site if that's not the case. I would have been adding that had I known I would need it. I seen others mention adding epsom salt which is why I'm doing. Didn't any mentions of calcium.

I should have added. This is a northern lights autoflower plant from seedsman.