Except for Het Red's.. they are a co-dom visual mutation that the Het form is labeled as such. So there are a few mutations that the genetics can get confusing so I understand the new keeper getting the Het thing mixed up from time to time.
Also there are many different mutations that the Homozygous from has a different name than the Het form..I.E Lesser, Spotnose, Woma. These Het forms look nothing like the super form. They are only named different becuse many were marketed prior to the super being proven so you don't get the name Het Pearl, Or het Power Ball. You do how ever see Het Russo or "Russo" Het Lucy, again a codom mutation that carries the Het prefix.
Just something to bare in mind when people get the whole Het thing mixed up.