hello, I was wondering if someone could tell me how old a pyxie frog has to be before one can sex them. Do females croak at all or is that also an indication of gender. At what point should i switch to mice? It seems the crickets aren't filling him/her up anymore. I know pyxies will try to eat anything they can fit in their mouths and at this point even a hopper would easily fit. If i do switch to mice how many is average for a frog between 4 and 5"? If anyone can offer advice I would be most grateful