I don't think you know what goes into purchasing wholesale. First of all you need a tax id# to buy from most any wholesaler. Secondly you typically have to purchase a minimum amount $$$wise. They are not going to be catering to someone setting up some home breeding facility. Next if you buy wholesale, you get what you get. They don't gaurantee them alive, healthy, so on (at least from a lot of wholesalers). Adult cb's PDF's you probably aren't going to find wholesalers with such an animal.
Its a good thought to buy wholesale, but if anyone could just buy wholesale why would there be pet stores?
As for fish, same thing really, except with a lot of corals your just going to get what they throw in the bag, what was the easiest to reach. Plus you are almost always going to get wild collected corals, which are a huge risk to a hobbiest. They often carry parasitic organisms, which can decimate a collection, they very often RTN or Bleach as they adjust. Overall purchasing wild caught corals, or wholesale corals is a BAD idea for a typical hobbiest.