Purple stems on seedlings

Hi everybody, I am curious what you think might be causing these stems to turn purple and if I need to worry or change anything. The seeds were germinated 3 days ago. They are ILGM blue Dream Autoflower seeds, I placed them into peat pellets as a sort of experiment.

They get lots of sun all day long, the nights have been a little cool, but I have them on a heating pad with a towel to buffer the heat a little. Any suggestions or advice on how to handle this?

Thank you in advance!

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Hey hey, don’t worry. I have them do it all the time. Not to worry


Great to hear, thanks so much, I was starting to stress out a little on my first grow.

Interesting and cool looking but I don’t think there’s any problem :slight_smile: