Red Devil;2930901; said:Now that makes sense.....they would behave differently in a shoal of pacus and a shoal of oscars in a 65 gal tank.. no body could avoid each other.. cramped quarters makes alot of fish do things they do not normally do..thats not even a question under those conditions..
A 4foot by 18" tank with four 3.5" inch pacus and 8 2" oscars. Not cramped in the slightest.