I have a pair of biters as well. The frostbite being the worst of the two. She’s actually jumped out of the tank twice now attacking my hand. You’d think after saving her twice she’d warm up to you some. No such luck. I usually have to remove them from the tank while performing any kind of prolonged maintenance. They were both model citizens until they started being hosted by anemones/coral in the tank. Thought about getting gloves. Haven’t quite gotten around to it. Not too sure what could be done to discourage any of that knid of behavior. Anything I’ve tried doesn’t seem to make a difference. Some clownfish are just jerks I guess. Looks like I got the short end of that stick.
Pic of the biggest jerk in the tank