coincidentally i was also going to post wondering about breeding these. i have 7, and have kept these for about 5 years now. it was to my understanding that these have not been bred before in captivity but i am very fond of the ones i have and think they are great terrarium animals. my oldest male calls frequently, the smaller ones who's interest is on the rise are easy to spot due to their newly stretched vocal sacs having redness to them. my understanding is that males call when a female crosses their path or if they hear loud sounds (like when the tv is really loud). i was told by a british enthusiest that the area they breed in is very flat and floods in the rainy season, but also the water has a higher than normal salt content (no mention of WHICH salt), he speculated that water pH or salinity may play a role in triggering breeding. i live in a very dry climate with little to no weather/daily barometric variance-so i cannot test if that plays a role in their interest. if you ever find out anything i'd apreciate the info, i'm also looking for info on kassina weali-i have never seen one in person, and the one in my book looks metalic gold and black.