Morwong is also used as a name for several unrelated fish found in Australian waters, such as the painted sweetlips, Diagramma pictum.

Kenny Gamble, Dockside Dave's manager and chef, has often heard the question since a Florida attorney general's investigation revealed this year that 17 of 24 other restaurants in and around Tampa Bay were passing off cheaper imported fish - tilapia, bream, hake, sutchi, emperor, green weakfish, painted sweetlips - as grouper.