I know a little about fish.
Status :
Join Date : Mar 2013
Location : Memorial area just west of BW8
Posts : 46
Thanks : 0
Thanked 9 Times in 6 Posts
Where did the rule of 6 for cory group size come from
It seems to have become conventional wisdom in recent years that corys must be kept in groups of at least 6 fish of the same species, to the point that there is an implication that to do any less is irresponsible. Yet those of us who have been in the hobby for a long time remember a time when the guidance was less...dogmatic?...about this, that pairs were fine, that smaller mixed species groups were fine. And we may have known a pair of corys or even a solitary cory that lived many healthy years. I understand that corys are often found in large shoals in the wild, but then again so do a lot of other species that are considered okay to keep even as solitary specimens. So I'm just curious, can this "Rule of 6" for corys be traced back to a specific source, like a peer-reviewed paper that actually studied corys in capitivity and found a minimum group size for health?
Bookmarks