My cakes have been in the chamber for 4 days now and I have no pin growth. The temp is a stable 77 with 99% humidity. I have a very small fan circulating the air and I am not getting any growth at all. I should be seeing pins starting to develop by now right? Is my temperature high enough? Here are two quick pics I took. If anyone has any ideas I would love to hear them. Thanks you....I have no idea what I'm doing wrong.