Ah jeeze . just got news that my one common clown died. I recruited a anemone crab and a mandarin goby this weekend. The crab didnt even last a day and now this???? Ive had 3 clowns and a damsel in there for about 3 months now and they were very lifely. Could it be that the crab caused this? My wtaer has been pretty stable. Ph 8.3 Sal 1.019 Amonia 0. I might have high nitrates but that shouldnt kill a clown especially not after it survived for so long??