I don't cover any of my germinating seeds any longer either. I should throw those domes away. They just take up valuable space.
My fans run 24 hrs. in the greenhouses (one in each greenhouse). During the daylight hours, two fans run in each greenhouse and I have the same set-up in the solarium as well. I just installed a "dually" fan and I love it. I ordered a second one yesterday and that's what I will use in the solarium. They are quieter than the 20" box fan and having two fans per unit allows me to direct the air-movement in two directions. Neat fans.
