I don't know why perlite is not supposed to be good for snakes. When I went to a hydroponics store a few years ago to buy vermiculite, the guy asked what I wanted it for and I said incubating snake eggs. He was really suprised and said I should use perlite. I asked why and he said that what everyone he knew used for snakes. I asked what sort of snakes and he listed a bunch of exotics! :shock:
The only turtle eggs I've incubated have been Chelodina longicollis. I think you could incubate these in media such as poisoned gravel, thumb tacks or marbles and they'd still hatch with no worries at all.
