I purchase a pair or probable pair of almirante this april, and have them both in a 20 gallon tank fully planted. I notice the male call every morning, afternoon, and right before the lights go out. Still no breeding. I was told these two frogs were 2 year old. I wonder if its possible that i was sold two male and one just doesn't call at all. They live in different area of the tank, pretty much opposite from each other. Should i make the conclusion that i have 2 male almirante? I see no aggressive behavior among them both. I was thinking about separating them from each other, as i do have 2 spare 20 vert tank fully planted. I just don't want to stress them from transporting to another tank.. Any advice to help me determine if they are both male would be appreciated.