Bion was selling their YG’s for about $500-$700. I bought a pair and acquired another pair from someone in the states. I still have 3 of those four and they are still alive at a little over 5 years old. I’m hoping that the female I have is gravid and will lay in the next month or so. Perhaps the only female out of all of those parsons to reproduce although someone in the EU maybe have had some success with one of those Bion YG’s.