The fish are all in different tanks. I have my two giant Tiger Oscars in One 90 Gallon(They seem to like it in there) I have the 4 Frontozas and my 7 inch baby Tiger Oscar in another. The Pirahna are in there own tank. Also the many yellows and all the others are all in one tank so far. But getting another one up and running soon I hope. I already have 5 now so plenty of room for more tanks lol. I posted a few pics of my big Oscars but I will get some more soon and put them up too.
with experince i would say that 90 gallons for two oscars is small, but it can be done with lots of water changes and if they dont fight, and for your frontosas and oscars thats not a good idea, lets say they dont speek the same language. they will fight lots as they get older.
They are a breeding pair of oscars in the 90 Gallon. Never had a problem and the water is crystal clear. The oscar and the frontosas all get along great. The oscar actually protects the frontosas from everything. He has never attacked them, even when they were 1/2 inch and he was 6 inches. Normally they would have been food but so far they are great together. Time will tell how well they get along but for now all is well.
