Quote Originally Posted by SCF View Post
... Another aspect to consider would be how the frog is 'posing' in the picture. In a picture it can be protruding its tail bone thus making it look like a "skinny/thin bottomed animal." If it shifts or sits another way in a picture this can suck in its tailbone appearing like a "round bottomed animal." So unless you are observing said frog in person it's almost impossible to correctly sex by this theory.
This is a possible reason why it's working for Eridu and not others. Having the frog in person can provide many visual clues and multi-angled views, hence greatly improving the chance of accurate sexing.

For example, I can sex Central American cichlids in a tank when quite young; but it's a guessing game from a 2 dimensional pic with no venting, fish movement or interaction among them.

If a super-female like Eridu states, and fertile, OP's got quite a treasure. Would wait to see if Griff's male grows to maybe 9-10 in. and formulate a plan to cross them. He, he, he, just dreaming of a selectively bred 14 in. GABF in couple generations .