What the heck happened to my trigger?

[seanoman]

Almost 2 weeks ago, I posted a thread and some pics of our new sargassum trigger....we were so excited to get it and it has been nothing short of a nightmare!! We still have not been able to get the fish to eat for us after trying everything that we can think of. The other night when we were doing our water change we lifted up the rock that it had been hiding under for a few days to see if it was still alive, it was but this is what it looks like now:




Does anyone know what this is and is there anything that we can do for it? We have removed it from our main system and it is currently in a tank by itself. PLEASE HELP US!!