For those of you that aren't opening the tubs at all I'm just wondering how you check for bad eggs? Maybe your container has a see through lid? Mine have white lids which makes it hard to see all of the eggs unless I take the container out and open the lid. Also, I've heard of people drilling 2 holes (one on each side of the tub) for air ventilation and some people say don't drill any holes. I'm assuming those of you who aren't opening the tubs at all have a hole or two drilled in the container? I tried that at first but it was drying out the incubation medium rather quickly and wasn't holding humidity very well, so I sealed them up. For my gecko eggs, I just open the container once a week to allow for air exchange.