Actually I use the Sterilite 6L latch top clearview boxes http://www.sterilite.com/SelectProdu...=252&section=1 The boxes have about an inch of perlite on the bottom and a section of plastic egg crate (light diffuser) http://www.homedepot.com/p/Unbranded...GG-5/202653781 on top of that. It's covered by a sheet of press n seal plastic wrap https://www.glad.com/food-storage/pl.../press-n-seal/ with the latch top cover on top. If the eggs don't fit I just cut apart the clutch.