Not really. Not if you are asking me.

I had to separate the biggest one with a divider because he is so much bigger than the other two and he gets really aggressive towards them. He does not seem happy about the divider glass but I don't know what else to do.

If you can get side pics of their tail tips, I can ID them for you. Once I get on my own computer, I'll post a pic of what a JFBN's tail tip looks like. They have very pointy tails, while CFBNs have more rounded tail tips. There are a few other ways to tell them apart, but this is the easiest.

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"Eagles may soar, but weasels don't get sucked into jet engines." - John Benfield