Its not a typo, the fish can be seen at our store, "RARE FISH". Its only a baby, and has lived in freshwater for the past 7 months and going strong. There are 3 other specimens in this country, shipped out by myself, which are doing well, one living with south american stingrays, and the other with large red tail cats and arowanas, the larger of the two is around 18" I believe, and has been doing well for the past 7 months also.
We're aware that they potentially grow huge, and we have plans for them as they grow. As far as them being "full salt water" when large, is based on limited studies and speculation, but there is "truth" beyond that.
Here are some pictures of them from last year, when they were young with a new guinea datnoid.