I have just added a pair of blue throat triggers to my DT. They are the last additions to my tank due to their potentially aggressive nature, whenever I view them they are model citizens, however I have noticed that something has taken a bite out of my mandarins tail, it can only be the triggers. Has anyone had any experience of these nipping at other fish, I am wondering whether or not to remove the mandarin to the QT, but then if I do that I'll be re-introducing him to a tank where the triggers are established. Do you think they'll keep nipping his tail? If so, I'll need to get either the triggers out or the mandarin.