Sick Babies

Hey! Plants need way more moister in the first weeks of life. If the soil is constently dry they take longer to grow. Don't over water but you're definetly under watering. I would take the PH down to 5.8, at this stage nutrients are better absorbed at that PH. If your using a light or heavy mixed soil, you don't need add nutrients until 3-4 after being planted. It does look like a bit of Nitrogen deficieny but it could be because of the prior mentioned stuff.. I recommend you water more, to give more moister in the roots and fixing PH, RH seems. fine. If that doesn't work add a bit of nutrients. Hope this helped. Good luck and happy growing!