Bringing humidity on incubator down!!!!! HELP

[crash0330]

Hello,
so I kust built this new incubator, Im able to achive the right temperature but cant seem to get the humidity at the right level, is it something that i can do to make it go down I have a tray with sponges on the bottom btw.

 

[Daidohead]

Surface area = humidity, lessen the surface area of your moisture supply and lower your humidity. Try removing your sponge.