@bramedog @roblaffin
Since you are both giving your seedlings long days you should have the lowest proportion of seedlings that take rests from producing new leaves (not actively growing). When a seedling's rest is complete it will start producing new leaves again. It may or may not completely lose all its leaves from its first round of growth. The photo below shows a seedling that has restarted growth but kept two of its leaves from the first round of growth.
This next photo shows another seedling that kept some of its leaves from the first round of growth. Unless one looks very closely at the seedlings repeatedly over time one might not notice that some of them have stopped growing (producing new leaves). The presence of the short leaves (bud scales) with longer leaves both 'below' and 'above' them indicates that the fan had stopped growth and then resprouted.
Have you noticed any of your seedlings taking growth rests and then restarting to grow?
