The S.I.M incubation container started out as being a homemade āno substrateā container. John Adragna and I have been keeping and breeding reptiles for well over 20 years and incubated eggs like most have over the years. Although the traditional methods of incubation have always served us well in the past, we wanted a better, more reliable method of incubation, one that would be quick and easy to set up without worrying too much about measuring water to substrate ratios, and that would yield equal to, or better results. More