Reptile & Amphibian Forums

I am incubating my Cyclura eggs always in vermiculite (Ratio 1:1 with water in weight, 29,5 Degree Celsius) but always I loose some hatchlings, because they die inside the eggs at the end of incubation-time.
I never tried to incubate them on Perlite.
I now bought a 50l Perlite. The diameter of the perlite is 3-10mm. I think it is much better then my Vermiculit with a diameter of 2-5mm.
I also think that Perlit allows better air circulation arround the eggs. Any other out there with incubating experience with Perlite and/or vermiculite?
How should I mix it up with water (ration)? Are large boxes with more eggs better then small boxes with only one egg inside ?

I've always used Vermiculite so I can't speak from experience on Perlite, but I've been told that you have to monitor that stuff closely because it can draw moisture out of the eggs if the Perlite itself isn't moist enough.
As I said I don't know that from experience.
I'd be interested to know if there's anything to that.

Though I have never incubated Cyclura eggs I have used both mediums to incubate bearded dragon eggs and I prefer vermiculite over perlite for just the reason Bob suggests. The perlite has actually taken all of the moisture out of eggs, killing them. Granted, I may not have monitored those particular eggs closely enough but you definitely have to be careful that it stays moist. Best of luck!

I've never had perlite suck moisture out of eggs. Use a 2 to 1 mix and drill a small hole (1/16 to 1/8) in the egg holding container. I actually use perlite for the substrate in the egg laying box, because it is easier to clean up when digging is finished that sand and dirt.

Thanks, you said to mix it 2:1 (Perlite : Water in weight) ?
What eggs did you incubate with Perlite ?

1) 2 part perlite to 1 part water.
2) Cycura and ctenosaura eggs.