Do fish see water like we see air? Can they see air as we can see water?

Question: Do fish see water like we see air? Can they see air as we can see water?
- Keywords:
  air,
  fish,
  water
Asked by anon-174268 to Yewande, Tim, Melanie, Hayley, Carl, Alex on 15 Jun 2018.
- Alex Seeney answered on 15 Jun 2018:
  
  I’m sure fish can see water, but I don’t know that they could understand what it is in the same way that we do. We don’t really “see” air – we see how it interacts with other things, so in that way, I’m sure fish can respond to air bubbles in water, for example.

Question: Do fish see water like we see air? Can they see air as we can see water?