I tried incubate for sure more than 500 eggs during my life. Dozens clutches. Mostly from imported females but some after copulations long term living animals in captivity raised from juveniles. I tried after my opinion EVERYTHING with exception of 2 cold periodes. NOTHING HATCHED.
Ok, it was as minimum 8 years ago, but I can not imagine what else I will make with them today. Frustrating, very frustrating...