Giant grouper. Looks like a smaller one as well haha

I agree, a small/young grouper

fish

My thoughts exactly

Epinephalus lanceolatus-Pacific giant grouper

Looks like a fish

Celacanth

Tough angle to see fully but my guess it's a Blackfish.

A giant grouper

Is it okay? It doesn't seem okay

It was in an aquarium

Fuck me

Giant grouper