Join Date: Nov 2012
Location: Queensland, Australia
Barns are not the ideal tank mates for bettas as they are known for being nippy and aggressive, if the barbs are only young they may attack your betta as they get older. Usually cory catfish and bettas get along pretty well.
I prefer to keep my bettas in a tank by themselves, mainly because most catfish are pretty messy and may cause bacterial problems for your betta, also I believe that bettas tend to interact more with their owners when kept alone, that being said a lot of people keep them successfully in community tanks.