04-02-2010, 03:42 AM
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The short answer is: well, you don't. You buy a bunch and see if they pair off, then sell the rest. I would recommend at least a six foot tank for a pair of adults. If you ask me, breeding is really not something you want happening unless you really, really want to breed them. Spawning oscars leads to a whole mess of issues apart from the typical difficulties of caring for the fish. Because of these issues, I don't think I'd ever put more than one Oscar
in my cichlid community for fear of them pairing off and killing my other fish in the process.