Hi ive had my two dumpy tree frogs for about three weeks now (Yin&Yang) so I was doing some research on how to tell what gender they are. Ive read that you can check by there hands and how close there ear is to there eyes and also just boy frogs croak. So I checked out my frogs and I thought I had a girl and a boy because Yin (the boy) was the only one croaking since ive got them but after a week or two the one I thought was a girl started croaking as well so that's when I got really confused ive also read that the females are bigger than the males. Yet the one I think is a girl is bigger than the boy and I also have another question the girl (Yang) was always brown when I got her and when I noticed her croaking shes been turning blue during the day so im not sure if shes sick or what they live in a 20 gallon tank with a lot of stuff to climb on with a waterfall and fogger I feed them two crickets every 2or3 days so please someone reply back im very curious thank you.