Stunned plants?

Hmm... they do look stunted. What soil are you using? Did you feed them anything? Thing is that if plants have a hard time in the first 1-2 weeks( could be over/under watering, wrong ph, lack of nuts) they get stunted and they won’t develop properly anymore. It’s usually under-watering that’s more of a problem at this stage. I would say temps are fine. The lights are not ideal, but you should see more development even with those FLs.

Temps are very low as well.

I say this all the time lol but create a humidity dome, you can cut a soda bottle and use the top half. Grab a diary bottle and spray daily with water inside the dome and on the leaves. This way you can water the soil a heel of alot less abs let the root grow properly. The root will slow down if its too wet or if the soil is too heavy, sandy. 🌱👍It really is the best way for the first couple of weeks.

Probably fertilized soil? If you start your babies in promix or ultramix in a small cup your babies will thrive from the start, then in about a week or two they can be transplanted into your fertilized soil with no. I'll effects. But you have to feed them a little in the promix or nutrimix. Your babies should be fine, their probably getting use to the ferts in the soil. Cheers