I have two and as far as I'm concerned there's no info or history of them spawning in aquaria (that's known about). I find they do best in softer water with plenty of driftwood, plants and having a dimly lit tank. Since they're anabantoids, I can only guess they'll be bubble nesters. They're absolutely softies to any other teammates, just territorial to their own kind. If you're really trying to breed them then its best to let them pair off naturally when they're young.
Hope I helped in anyway