Quick questing for the DGC community. When storing some seeds, I have then in cool, dry, dark storage. My question is do they need air? My concern is i have placed them in a plastic container then put that container in a ziplock bag, in a metal canister, in a box in a cool dry location. Just curious if they need to breathe to stay viable or if I’m good the way I have them. Thoughts go out to our growers out west stay strong.