Heard My ADF singing for the first time tonight! It was pretty cool. I was observing my tank closely when I heard a slight buzzing, at first I was afraid it might be either the filter or something else nearby...it kept it up. My frog seems happy. I was surprised how electronic it sounded, like one of those cheap old school hand held video games. He kept it up for about 3 minutes, then swam up for some air only to came crashing down arms flailing trying to get under that driftwood. Hopefully, he'll keep it up, I like hearing it, it makes the room sound like a Jurassic Park!
I remember when I had adf's absolutely loved their mating call idk what it is just the white noise but always helped me sleep , on the down side I don't have them anymore but on the plus side I have 3 tanks with healthy fish