They look good. Let them grow.
Your job as parent is keep them at the right temp and humidity.
Use a spray bottle when watering...not the leaves, the soil, maybe 10 spritzes as needed every few days...slowly increase # sprays then water a few ounces max as it readies to transplant. If no spray bottle you can literally spoon feed them just a bit.
Spray under the plant in very small circle. Expand circle to match width of leaves.