If they breed like rabbits in the aquarium then they should be breeding in the wild like rabbits also.
i agree with snakemanvet, these fish breed like rabbits. There is no need to sell wild caught banggaii.
I've been looking for these guys for a while and my LFS says that they get them in frequently, but he also said lately about 50% of them end up dying due to them being so small. They are coming from quality marine so you would expect that they would not be selling dying or sick fish! Oh and they are all aquacultured.
I would like to get a wildcaught pair to breed actually. I'm all for captive breeding but not a stagnate gene pool.
Harvesting from the reefs brings value to those reefs. Just like a tree farm, it is renewable, unless we devalue the Reef and decide dredging for a shipping yard is more important, or harvesting food fish with dinomite is more productive.