Pk Tail Biting

[x0x.love.you.x0x]

anyone heard of a pk that tail bites???
i think mine does

 

[newfishy]

any betta can do it. my sister and I both have some boys that all had the same father, the father would bite his tail whenever in a divided tank, every single one of his sons does the same thing. alone in tanks they are all fine.

stress or severe boredom can do it, however I would say 99% of the time there is some sort of stress going on.