Well, I started out with 2 and one of them was the most extremely territorial aggressive fish i have ever come across - he was far worse than any betta! I sent him to another tank where he was the smallest fish and he apprently now knows his place. The other one is not so bad - in fact he's really good freinds with the clown so I guess it;s like any fish - they've all got their individual personalities so you never can tell. I guess a good way to get them is to add them last; that way they do not think they they are the "owners" of the territory.
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