Welcome!
Haha, that's neat.....so Newman is a male and Bobber is an unsure lol.
Hey, you know what would be cool? If you got a sound sensor recorder and left it near your frogs' tank over night. If you could capture their vocalizations, maybe you could play the calls back to see if the frogs would respond! It could tell you something about their behaviors and possible help you determine if Bobber is in fact a male!! Haha, maybe I'm just getting too excited over frog calls and science lol ;D.