Perforated dome for seed starting & seedlings?
I've been having good success by starting seeds in flats under a humidity dome in which I drill small holes every few inches. Fluorescents on a timer are set an inch or so above the dome. The holes seem to allow in enough fresh air to avoid fungus forming even without daily airing-out, while the dome retains enough humidity that daily misting is not required. That lets me leave the whole setup for up to a week at a time if I'm traveling; when I come home, typically I have a tray full of healthy, freshly-sprouted seedlings.
I'm wondering whether there's any drawback to this approach, and especially whether it would work even after sprouting until the seedlings reach the height of the dome Â or whether that would encourage damping off. I'm hoping others on this forum will have tried something similar, or will have thoughts on the idea.