Hi Loren
Welcome to the Forum I too keep Green and Golden Bell frogs and they're wonderful pets.

To tell their sex a male will have a yellow throat and a female will have a white throat if you look at Ebony's avatar you will see the different colour throats.

I've looked at your photos and I can't really tell the throat colour if you could post a photo of the throat I'm sure Ebony will be able to tell you.

For the diet I have a woodlouse colony in the enclosure and other insects I can find. I bought some locusts off of trade me from Ebony to for a bit more of a variety. I tend to let them eat what they want and if they look a bit skinny I give that frog a locust.

Welcome to the forum everyone is friendly and gives great advice.
Thanks Luke