Cotyledon Yellowing Day 10

First time growing. Took the plant outside of the grow tent to take pictures of it.
I was out of town when it came out of the soil but I planted it 10 days ago.
Its been in about 85 F in the tent and usually around 60% RH.
Light is a Spider farmer LED about 1ft-1.5ft away from top of plant. In the past 2 days the cotyledon has turned slightly yellow. One of the cotyledons has some kind of film that I think was left from the seed I am not sure of anyone can confirm that.
Watering with spray bottle around the plant but not at stem. I spray until just moist and don't water again until it feels dry. Sometimes the bottom still feels damp but not really wet. Not sure what its planted in but it was an expanding pellet that I got from a pot for pot kit.
Not sure if anything is wrong with the plant but just want to make sure.
Seed: Sour Diesel Autoflower 18 hours light 6 hours dark. Fan going too for circulation
Thanks in advance.

I'm also concerned with the pace of the growth. Does anyone think I can be Underwatering?

how many watts? seedlings don’t like that much light for starters, it stresses them out. also no newbie has ever underwatered their seedlings. i think you are overwatering if anything. that dampness on the bottom is enough moisture for a seedling to survive on and to much dampness will suffocate the roots, so root rot is a possibility at this point. also i’d get that temps down a bit if i were you.

2nd overwatering

What's ur waters pH?

Seedlings like it warm and humid so its not that...and chances are just because it says 85 doesn't mean the seedling is at 85...leaf surface temp is what matters...still get ur temps down...my main concern is the pH of ur water and is it tap water? And what exactly does the pellet consist of? Coco coir...peat moss ? You need to figure that out...also pider farmer recommends the light be 24 inches for seedlings says it in the manual that comes with the light..
That's not your problem but I'm letting you know

Nilspoulsen said:

cotyledon has turned slightly yellow

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Perfectly normal, she's saying "feed me".
If it feels lightweight give some water.
Seedlings don't need/want much direct light.

Pics look good & normal to me.

When the roots come through that peat pellet & a couple more leaf pairs have formed, good time for more light.

Have fun

Cotyledon420 said:

What's ur waters pH?

Seedlings like it warm and humid so its not that...and chances are just because it says 85 doesn't mean the seedling is at 85...leaf surface temp is what matters...still get ur temps down...my main concern is the pH of ur water and is it tap water? And what exactly does the pellet consist of? Coco coir...peat moss ? You need to figure that out...also pider farmer recommends the light be 24 inches for seedlings says it in the manual that comes with the light..
That's not your problem but I'm letting you knowView attachment 4995697

Click to expand...

It is a Pete Moss Jiffy pellet as per their website. I have tried to get the temperatures down but the LED produces lots of heat and is not dimmable. Ill make sure to pull it up a bit. I am using tap water which I believe Is pretty "hard" water but I don't have anything to test PH levels. When I started tent temps were 90-92F added another fan directly at the light and that's what is giving me that 85F avg. Switching put sponges to keep up that 60% humidity.

crimsonecho said:

how many watts? seedlings don’t like that much light for starters, it stresses them out. also no newbie has ever underwatered their seedlings. i think you are overwatering if anything. that dampness on the bottom is enough moisture for a seedling to survive on and to much dampness will suffocate the roots, so root rot is a possibility at this point. also i’d get that temps down a bit if i were you.

Click to expand...

I think it says it draws 100 watts not sure really. Raised the light and skipped watering for today the bottom seems to be almost dried out so will water when feels completely dry. Temps avging 82F now 58% Rh going to get a PH tester for water.
Pot4Pot guide saying transplant after 10 days (its been 11) seems a little small anyone have advice for when to transplant? (going to 5 gallon pot)
5 gallon pot been sitting for about 2 weeks now with Superb soil with a top soil mix of coco, perlite, Diatomaceous earth, and some mycorrhizae.
I bought some Mycorrhizae myself to put around the soil when I do the transplant as well.

Nilspoulsen said:

It is a Pete Moss Jiffy pellet as per their website. I have tried to get the temperatures down but the LED produces lots of heat and is not dimmable. Ill make sure to pull it up a bit. I am using tap water which I believe Is pretty "hard" water but I don't have anything to test PH levels. When I started tent temps were 90-92F added another fan directly at the light and that's what is giving me that 85F avg. Switching put sponges to keep up that 60% humidity.

Click to expand...

Dechlorinated tap water (use a airstone for 24 hrs) pH between 6-7...water when dry