105G Custom Shallow Paradise

[JDigital]

Maybe tonight is a good time to start shutting down......

Got home this evening, to find that I have lost one of my Convict Tangs. The juvenile. He had been AWESOME up until last night, when I noticed that he was just "chillin" which is odd, as he has been grazing the algae in the tank since day one ferociously and there is still PLENTY to be eating, haven't cleaned my back glass for like 5-6weeks.. He just kinda quit doing his thing, looked weak even though my larger Convict is still active and eating (Finally got him on Nori this week!!).

I am guessing an internal parasite or such, but really have no idea.