Seedling has yellow cotyledon leaves

Hi to all. I'm nit panicking, just something new to me....and if anyone has time...win-win.

Cotyledon leaves on 2 out of 5 plants are little yellow as on image, what could it be ?
Not burned of course...light was further away. Watering with drops manually so don't think thats the issue. H:around 40%, temps.24-26 C.

well...cannot upload photo.

Photo.

N

Looks kinda dry.

And just a tip. When it stretches out past the pot edge fill up to a quarter inch below the cots with fresh soil.

I always water pots to saturation and wait til very dry to water. If a seedling needs more before established I water around the stem about an inch very slowly and carefully to not damage new roots.

Looks fine ish, did the membrane stick on the end of the cotyledon for some time, that's kind of what it looks like. As long as true sets are healthy, which it looks, they likely will be fine.

CannaBruh said:

Looks fine ish, did the membrane stick on the end of the cotyledon for some time, that's kind of what it looks like. As long as true sets are healthy, which it looks, they likely will be fine.

Click to expand...

This ^^^^
Its a tall pot, for a seed as well.
It does look dry.
Id just feed, or water, with a syringe until its grown bigger. Its a big pot.
You wouldn't need more than 50 - 100mL, of water or solution, at the moment.

Yes...the shell did stick a bit longer and then i removed it. I water it with syringe carefully, not experienced enough yet, so rather underwater then over. Was better with cfl very close than mh.... so far.

Thanks everyone, have a good day!

As the plant grows, more than likely they will fall off anyway. as long as new growth is green you are good. No need to use nutes for about the first week or 2. Plenty of newts in the cotyledons to get you by until then..

I will transfer them in about a week or so and just put the stem a bit deeper into the soil, nothing bad right ? And then i'll switch from 250w to 400w MH.

Sounds good @dejvi, you're doing it right.