Okay, if you have read my how to care for cricket frogs post, you will know that my little Eastern Northern Cricket Frog (Yes, I know the species now) Is a fully morphed froglet. Now I need to go out and get him some flightless fruit flies, but the only problem is the last couple of fruit flies I got ACTUALLY COULD FLY! I bought them from both Petsmart and Petco, and bought different brands, but all of them flew away into our house. Is there any way to tell if the next batch of fruit flies are flightless, or will I have to wait and see?