Let me start with a little background. I have a 55 gallon quarantine tank with 3 yellow tangs, purple tang, majestic foxface, blonde naso, and the late red sea sailfin. I do frequent water changes and had them for 8 days now. All where doing great and strong eaters with the exception of the naso that doesn't eat much. The other day the sailfin stopped eating but showed no signs of any issues. My girlfriend checked them and all were swimming and acting normal. She goes to the lfs to get food and comes back to the sailfin suddenly dead. Weird thing is the tang is really dark with a white spot on one side. Could he have been stung? I did lose a Achilles before i got home from it getting stung. Any thoughts on this? I might get ride of it do to fear of my shark getting stung.


