Pronounced Vee-ay-ha Ar-jen tah. Males typically max out at 14" while females slightly smaller. Aggression levels vary depending on the specimen. Some can be incredibly aggressive, while others stay fairly docile.
I have this fish. It's beautiful. I put in a tank with some Super Red Severums and Paratalapia bleekeris and that were bigger that it and it held its own in the tank. No one messes with it and the beauty is that this fish does not aggressively attack other fishes in the tank, even those smaller than itself. It's a good fish to add to a well established tank because it won't get "whacked" by the other fish unlike other species. A definite must for a fish collector.