This just started over the last day or so, My percula female kicks water at me everytime I open the hood of the tank almost as a sign of aggression. Its kind of funny in a way. I open the lid to feed them and she comes to the surface turns sideways and with one long swoop of the tale splashes water at me. Has anyone had this happen before and if so what do you think it means. This clown has never been aggressive before but she seems like if I were to put my hand in there now I may get nipped.