Hello i have only hade my tank for 1 year,\nI have 1 emperor anglefish, 1 strawberrydottyback, 1 marone clownfish, 1 brown tang, 1 gobby head, i carnidal fish and 1 sick lipstick tang.\n \nMy lipstick tang appears to be very sick. We have hade it for two weeks now and it has been eating every day. But this morning it did not eat!!! It spent ALL DAY at the top of the tank and now has turned a very dark black colour with a few white patches and one line across its eye and has lots of spots. I have put it into an isolation net and it is just lying down now!!!!!!!!!!!!\n \nIts usual dieat consists of brine shrimp and marine cusine along with nori.\n \n \nPLEASE HELP I THINK THAT IT IS DIEING.\n \nThanks alot.