My healthy well established tang is missing?????? Any ideas?

[chevyjaxon]

my yellow tang died, seen him kinda buried in the sand under a bunch of rocks the cleanup crew was working hard getting rid of the corpse.
a Week later my unicorn tang all 8 inches of it dissapeared that was 3 months ago my mistake i didnt dig for it. I had an ammonia spike killed the other tang
Dont make the same mistake I did if you find it Dig Dig Dig get it out if its dead before you get a spike btw sorry to hear about your tang missing