Help with sexing. (Photo Included)

[africanbull]

Hi Guys,

First post. I am looking for helping sexing my 9ish month old. Sometimes it catches prey and makes an aggressive croak with food still in its mouth. Other than that, very relaxed and burrows a lot. Its tank right now is fairly small and feel its about time to increase. Does having a larger tank (half land half water) promote the best growth? I feed weekly, but not daily. I do not want to make the frog obese but do not want to stunt its growth. Open to insight!

Thanks
pete