Our intermedius have been calling for the past few weeks. They would call during the day like 'normal' dart frogs, but they also call non-stop from 12:00-2AM. They do this almost every night too. Has anyone else noticed this with any other species of dart frogs. I have also heard vents call at these hours but not every night like the intermedius. I personally think this is very peculiar and am curious if its normal and most people just don't notice because they are sleeping. I'm in college I never sleep.