Prior to the goldfish picture published, some of us speculated they would use hibunas (common goldfish) but it looks like they use oranda after all. I'd grab one in a flash once it hits the petstores. I've always been a fan of orandas keeping currently 10 myself.
hmmmmmmmm interesting....but i wouldnt buy one...it doesnt look particularly appealing to me. would be interested in seeing one close up in an lfs though.