I would ask your LFS to order a PNG/Soloman Islands percula. Hopefully they will find an Onyx for you. Also, there are quite a few breeders of Onyx (I have two batches right now) so you may want to see what they have available. As a last resort, you can ask your LFS to order a Sustainable Aquatics Onyx clown, just look at it carefully for defects and deformities, the most common being the squished bulldog face.