im building a fridge into an incubator and read someplace you should have fans inside the incubator to move air around, is this a big deal? and what fans should i use? its a bigger fidge about 36" tall by 18" wide and 18" deep right now i have it set up with water bottles on bottom and then 3 shelves holding two tubs per shelf...and in what tub should i place the probe? i dont plan on using that tub for actually incubating eggs but i heard it should be in a tub to make sure the tub temps are right... i was thinking of making a hole in the tub big enough to slide the probe into and then using hot glue to seal it up tight... sorry for the questions just trying to make sure i get this all figured out before i have eggs and no clue what to do