Can i transfer seedling to coco right in the middle of grow without damaging it?
Actually ww2 got a lighter green than what it shows on photo, my phone camera always enhance color automatically.
I would just do what everyone else is saying on those two.
But I would go and get two 7 gallon Fabric pots and fill them with a good Clackamas Coots soil recipe.
Wet the soil as you layer it in the pots and use a wetting agent such as Yucca or aloe vera in the water, make sure theres no dry spots left that are hydrophobic.
Let that sit a few days then germinate two more seeds and plant them in those 7 gallon pots.
Then you water the plant, not the pot.
Water the seedling in a small circle about 1" out from the seedling, just enough water to complete the circle and moisten the soil to a depth of a couple inches.
Do that about twice a day.
Day 4 you bring that circle out to 2" and use twice as much water.
Day 8 bring it out 3" and double the water.
By the time its 3 weeks old you water the pot.
Keep your lights about 30" up until the second set of real leaves grow out.
Do a 20/4 light schedule until ready to flip, a week before flipping go to 18/6, then to 12/12.
It looks to me that you got bad soil in a bad pot and you're probably fighting a losing battle.
But it's hard to tell in pics, it's something that needs a hands on assessment.
Everyone else seems to think they're doing just fine and they could very well be correct.
So I would opt to follow their suggestions on those two, but get good pots and soil ready, by the time you do that you'll probably know if these two are going to snap outa their funk like everyone else seems quite sure about.
Then you can either transplant these into the new pots if they're growing as they should or germinate two new seeds.