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Hi
I have a 200 gallon tank with lots of different fish, including 1 Bangai Cardinal. Can I get more of these? It says on some websites that cardinals can be aggessive towards their own species.
You can get 1 and hope they pair up. If they don't, you will be back down to 1. For the most part, cardinals are best in pairs or single. They don't tolerate each other if not paired up.