Thanks everyone! I actually just bought 2 more convict cichlids tonight females!!! I'm so excited because I already had two males .. so my five cichlids live in a 45 gallon tank with a Marineland HOT Magnum Canister Filter with Bio-Wheel attached I'm hoping to add a couple of jack dempsey cichlids also.. I'm hoping my convicts will mate, I'm also starting to hatch my own brine shrimp eggs in case they do give me babies and make me a grandma!

.. my blue gill lives in a 20 gallon tank I cant remember exactly what kind of filter he has .. its a canister filter however ..
I bought 2 more magnum canister filters (I love them things! they keep the water clean and sparkly without a lot of fuss and trouble) anyways I bought those for the oscar tank which is a 250 gallon tank. My oscars will be bought after christmas as I'm still reading up on them and doing as much research as I can I want to know everything! I will be getting tiger oscars the orange and black and I'm going to get the smallest ones possible.
Today at my pet store they let me hand feed the oscars some crickets and I have got to say that .. I was just blown away with how friendly and careful they were and oh so eager, it just made me fall even more in love with oscars!
All of my tanks are kept between 76 and 80 degrees, I dont have live plants yet only plastic I'm still considering live ones yet . My bluegill has a 2 inch pleco and my cichlids have a 12 in pleco.. my oscars probably wont have any.. perhaps a couple of crabs though.. undecided yet.
So yeah, I'ma fish nerd I have two tanks up and running and one more on the way.. I will take pics as soon as I can probably early next week since this weekend is packed full already.. if anyone has any great tips about oscars I'll gladly accept it!