I have one sprout in a grow box setup , I have to lights in their giving off 1800 lumens . The sprout seems like it's stretching , it might now be , but it's about the size of my pointer finger , & it's been growing for about 5 days
Looks alright to me. Soil looks a little wet, the perlite is stained. That happens when it wet for a long time. I'd fill those cups a bit more with soil.
Is what happens when you use an unbalanced light ...spend the next week or so shining a cfl at 6500 kelvin(cool white) of it to encourage horizontal growth, put a small fan in there as how do you think plants breathe...?