Food for thought. What does Venusian Nightfish taste like?

The TARDIS food machine in An Exciting Adventure with the Daleks can make it. But given the surface of Venus is a crushing hell with pressures and temperatures that even the toughest NASA probe cannot survive…

What would the fish be like?

Would it swim in an ocean of sulphuric acid?

Would that be predated by the Keys of Marinus?

Would you want it served with onions?