Nice Betta Thailand.CO.,LTD @0xa7171ebba801bd10a5ce7a061d6e80c044d0e075 Active 7 hours, 20 minutes ago Activity Profile Shop Friends 63 Groups 8 Forums Media 120 All120 Albums1 Photos73 Videos47 Music0 Why Do Betta Fish Bite Their Fins Tails Why Do Betta Fish Bite Their Fins Tails? Why any betta fish bite fins? Tail biting is self inflicted biting causing noticeable damage to a Betta’s tail. Tail biting is not a disease and should not be confused with tail/fin rot. There are no comments on this media yet.