Oscar Fish
Do you have at least a 55gallon tank for each? They grow really fast. Really, really fast. If you have a 100gal tank you might take a couple of them. You need to overfilter, just as with goldfish, as they put out huge amounts of waste. You also need a really sturdy heater or it will be broken at some point in time.
They're really cool, but if you don't have proper housing you'll most likely end up with sad fish with hole in the head disease. Use google extensively before accepting these fish. Read until you feel you could make your own website on oscars. Then you might know enough to keep them properly.