I have a lot of seeds started and a LOT have emerged and are under lights now. My furnace room has turned into a greenhouse!

Some of the soil in certain spots are a bit moldy. Should I prop the dome top a little bit to let some air in?

hi patty
better to open cover if see mold starting,do not want your seeds to damp off,to keep them alive.if mold is on top soil mix ,carefully remove mold. with out touching seedlings.if you can or use damp off.having a big problem with my petunias most are damping off. dieing losing a lot.let air get in. day or two,may have water spray bottle bit.from bottom.
willy

Spinkle cinnamon.

I just sprayed a 10% bleach solution on mine.

Patty, I would open up the cover, I think it would really help if they could get some air in there.