One of my adf's got a crazy streak the other day. I heard a plop sound in the tank and I look up, and the frog was attached to the Betta's tail and he would not let go. I freaked out. I never had a problem with my adf's until the other day with my betta. He tore a hole in my bettas tail. I was pretty scared. Off topic kinda, but thought I'd share.
Males; all VT; Jello♥, Binky, Killer, Jinx, Shadow♥, Viper