Tropical Fish Keeping - Aquarium fish care and resources (http://www.tropicalfishkeeping.com/forum.php)
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- - mixed corydoras (http://www.tropicalfishkeeping.com/catfish/mixed-corydoras-8010/)
if i buy groups of 2 of 4 or 5 different corydoras will they swim together as a school or separate into groups of 2?
I have 6 cories and 3 different species. They usually sit around together in pairs. They don't school.
It pretty much depends on the individual fish. Like Gump says his don't school, whereas I have a mix of 3 different cories (12 cories in total) and they do school together in their own species 95% of the time when sitting still. They often swim about in pairs but when still they tend to keep to their own species.
I think that if there is a large enough group of the one species then they will hang about together. Personally I found my cories much happier and more fun to watch when I introduced more of the same species.
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