Has anybody noticed that your lower ranking fish are always changing pecking order while the top fish always are in command? Last couple days a the pecking order has changed on a daily basis. I love watching everybody scatter when the ruler of the tank takes a stroll through to the other side.Today all the lower rankers are chasing around one of my Red Heads taps. Yesterday it was a Rotkiel sev, day before that it was a green sev. funny how once one fish chases around somebody they all step in and give it a whirl.