Quote Originally Posted by Eridu Serpent View Post
Personally I have found it better to sex them with this method when very young, as most come from the breeders slightly under weight it also better to wait after a week of feeding a good food to them.
As they get older the theory depends on how well they are fed as very underweight ones also get the spine bone showing more.
But I have found it to be a good way, I have been doing some tests with the importer who I got mine from.

I'm not doubting you at all. It would just take more than a few frogs to sex at a young age accurately to prove your theory. There's always a 50% chance you will be right, so it would take numbers.