Had this in the Emergency room. http://aquatopiaforum.com/index.php?showtopic=1855
I am happy to say that the fish are doing great and all seems to be good again.
I am still very sad to have lost the yellow tang. But i guess we all live and learn. But i hate learning at the expence of my fish.

Thanks to those that tryed to help out on this problem.

Its ok, we all learn from experience. and next time will be better :)

I know how you feel. I have not had good luck lately with my fish.