Mystery Disease

Chris Attison

Reefing newb
Hi,

Im new to this forum, and I apologize if thousands of people post similiar situations, but i just cant seem to crack this mystery. If anyone could give advice or happens to know what could be the cause, I appreciate a response. Heres the situation:

A few months ago, I started a 37 gallon fish only tank. I cycled it properly and within about a month I added a couple of damsels. The damsels took well, and after a couple of weeks I added an ocellariuos clown. A week after that I added a 6 line wrasse and a chocolate chip star. So now I have five fish all healthy and happy. It stays this way for almost two and a half months. Then, I decided to give away the damsels and add a small yellow tang. The tang seemed healthy, but within a few days, I find it dead. I figure, ok, it happens. I take out the dead tang, and figure that Ill wait a week and buy another one. Well, I didnt get to that point, because two days later, the 6 line wrasse dies and the clown dies a day later after that.

Now Im pissed, because I have the feeling that the tang might have been carrying a disease that i couldnt see and killed the rest of the fish, but it wasnt ich or fungus or anything else I could see. The only thing that is alive and well in the tank is the chocolate chip star. I do a 70% water change, clean the sand, and then i go to buy a damsel, so that I dont break any cycles, nitrogen or bacteria wise. Damsels should be the hardiest fish of all, but after three days of adding just that one damsel, it also dies.

Throughout this whole time, my pH, ammonia and nitrite levels have been perfect. Salinity gravity has been consistent at about 1.023. Unless someone can give me some insight as to what else might have caused this, I can only believe that it was the tang that started this death storm. Any advice would be appreciated. Thanks.

http://forums.saltwaterfish.com/forums/posts/edit/postId/3481794http://forums.saltwaterfish.com/t/392242/the-mysterious-disease#http://forums.saltwaterfish.com/forums/posts/add/threadId/392242/editorType/basic
 
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