Ok say it is not purely hypothetical.
I have a friend who has a back ground of commercial aquaculture and we are thinking about getting together to culture some exotics that are other wise hard to come by because they are not readily imported from the wild or bred commercially.
For that reason no CA/SA cichlids, no clownloaches, or any other common fish like clown knifes.
Right now we are looking at different characins. P. piraya, P. Caribe, S. Rhombeus, Distichodus sp., maybe even VATF. Also looking into D. Pulchers, and other perciformes such as Korean and jap perch.
We are doing it as more a less an experiment but cause of the cost of the fish themselves we would at least need to make our money back.