seedling update

The seedlings are finally starting to show signs of true leaves.  The celeriac has finally germinated and the jalapenos as well (although not 100%).  I think the slow growth after germination may be due to the coconut compressed pots I used, I am guessing they are a sterile growing medium but they don't have a lot of nutrients.  Today I fertilized with a dilute liquid fertilizer, hopefully there wont be any root burn.  Oddly the white lettuce seeds (4 varieties) have all sprouted where as the 2 black seeded varieties are still empty.  I wonder if the seed color trait is linked to germination time?

edit: both black seeded varieties never germinated even after a second sowing.  must have been a bad batch and just a coincidence they were both black seeded.

The brassicas seem to be getting leggy even though they are under lights.