No you are right. All the fish were in there (and most now dead :(), this is a hotels lobby that maybe was a few degrees colder than previous winters, but still

No you are right. All the fish were in there (and most now dead :(), this is a hotels lobby that maybe was a few degrees colder than previous winters, but still comfortable - and the fishes also need their temperature. Except > I guess its cylindrical shape is dependent on it being full of water no, or how do you mean that?