Talking about cross breeding. Read this
"Lately I’ve seen advertisements on the internet for a catfish that is being sold as a hybrid between the red tailed catfish Phractocephalus hemioliopterus and the tiger shovelnose Pseudoplatystoma fasciata. Since these are separate genera and neither is commercially raised, it is doubtful that these are actually hybrids, but merely an unidentified species (although recent information indicates that they may be developed through artificial insemination, stripping the parents of gametes and mixing them)."
http://www.aquarticles.com/articles/breeding/Thurston_Hybrids.html
"Lately I’ve seen advertisements on the internet for a catfish that is being sold as a hybrid between the red tailed catfish Phractocephalus hemioliopterus and the tiger shovelnose Pseudoplatystoma fasciata. Since these are separate genera and neither is commercially raised, it is doubtful that these are actually hybrids, but merely an unidentified species (although recent information indicates that they may be developed through artificial insemination, stripping the parents of gametes and mixing them)."
http://www.aquarticles.com/articles/breeding/Thurston_Hybrids.html
(be happy the front isn't tryin to kill the con). Example, raise a tank of all male Africans long enough & you will see some very "friendly" things go on, promise, happens all the time. Turn down the lights & give them some privacy, just make sure the camera is on, lol, hello youtub*.