This stuff happens. I just assisted in the death of my candycane goby. :-(
I had to break my whole tank down to get a fish out and he must have gotten squished or stressed but he's gone. never found a body either.
It really sucks but don't give up.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.