May be worth putting some information on where the fish origintates from e.g.
Used to b found throughout thailand, especially in Chao hraya and the Mekong Basin.
Also maybe some other bits like this:
Scientists are still not certain about the current wild status of the Red tail shark, or even why the wild population decreased so dramatically. Many people believe that the Red tail sharks popularity among aquarists led to over fishing, but there is actually no proof to support this theory. According to the IUCN Red List of Threatened Species, habitat modification is a more probable reason behind the sudden decline of the wild Red tail shark population. The many dams that were created in Thailand during the 1970’s affected the natural habitats of the Red tail shark. The freshwater basins were you use to be able to find Red tail shark was seriously impacted by the dams.
(these bits are taken from other sites, not sure if you can use them wortd for word, but jiggle the words around a bit, bit of other info if you wanted to use them).