Well I got five, they are the pygmies. Super cute, tiny! They're in the 15, and seem very happy. Way more active than my other cories.. Which brings me to my next question. I have a single emerald Cory, he was one of the first fish I purchased, before I knew much. I also have a single peppered Cory that came with a tank from craigslist. The peppered is in a tank with kuhlis, so I don't want to add a school there. And the emerald is in a tank that is realistically overstocked at the moment. Can't add there. So will mixed cories be happy in the 20 long? Will they school together? The peppered is fully grown, and much smaller than the emerald. Just over two inches, the emerald is a generous three.
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