Basil Seedlings

I planted some basil seeds in a plug tray - and they are about 2 weeks old.  I will transplant as soon as the second leaves a little bigger.    If you transplant too young, you will damage the seedling or roots as they are so small and don't handle the man-handling required to transplant them.  If you wait too long the roots will be too big and there will be transplant shock.