I am going to be doing the same thing!! I also want an Oscar and have been doing tons of research....I think I need a bigger tank because the one I have now is only 27.5 gallons... I'm going to upgrade to a 55 gallon.. I think I will only have 1 though because I dont want to cramp them up... Also the tank would be harder to keep clean with 2 really dirty fish...I remember that when I was younger my mom had an Oscar that lived to be 14 years old...How cool right??? I know it was cool he was HUGE!!!! So, if you are thinking of something cheap that will last a long time and has alot of color, go for the oscar!! Hope this helps....~~~Erika