I have a huge 1/4 HP fan that I had laying around from an old A/C unit and I have that hooked to a dimmer and a timer for my incubator of the same size. Will probably pick up a pc fan for next year since I loose a whole tub space with my fan.
Deb, where did you get those incubation tubs? I love them and what are their dimensions if you don't mind? Thanks