Fish lost, 99% sure dead

[Aquattro]

Ideally you find him and remove, but I wouldn't take the rock out to do it. I've "lost" large fish in a 180, no real impact. Water change in a couple days is a good idea.

[jason604]

i lost a fish once and the next day i found only a tail, spine, and eye balls left... nature will do its course if it does die

[mohammadali]

i have seen tang jump out , look around your tank behind if u dont find then it might be hiding or dead

[corpusse]

I would try and find him. I just lost my chevron tang who was maybe 7.5" or so. I couldn't find his body at all. He died when I was away. I got home thought hmmm everything is okay I'll do a 50g water change (180 as well) everything will be fine. Nitrates crept higher and higher and there probably was an ammonia spike. I ended up losing a bunch of sps corals plus having to do two 100 g water changes to stabilize things.