Just because something is in the same genus does not meanit can or will interbreed, just the same as being in a different genus does notrule out hybridization. However there are cases where people have producedLeucomelas and auratus hybrids by housing them together so in this case we knowit can happen. Second leucomelas and auratus share a similar environmentalniche which means they are likely competitors for that niche. This is alsosupported by the seemingly mutual exclusion of species overlap. The range ofauratus and leucomelas do not seem to overlap much if at all but do border eachother. This would suggest they are inhibiting each other from expanding intothe others range.

It would be best practice to avoid putting them in thesame vivarium for that and a variety of other reasons.