well i caught an american bullfrog about a month ago he was a skinny little thing ive been feeding him dubias and alot of crickets( now he is plump) and cleaning his water everyday and he seems to be very happy he doesnt jump and hide anymore when i approach his tank, he actually i think is comfortable with me now and eats like a champ. last week he started to call about 5-7 croaks in a row then he will stop. i was wondering do only males do this or do females do this too i read only males but he is only like 2.5 to 3 inches long s/v length and he now calls every night how old are they when they start to call. ill post pics of him tonight he is an awesome little guy that loves to eat and is pretty active. if its a male i wanna get him a girlfriend when i move him into his 75 gallon aquarium soon he is currently in a 40 breeder with large water bowl.