inter-galactic travel...

My cousin gifted me a fish tank with 6 fish yesterday. They travelled by his car in their glass house to their new abode.
i was wondering at their experience. How would it feel to be transported alongwith our house as we are inside, to a distant planet. the uncertainty, the anxiety, the fear and so on....a kind of weird and spooky feeling..
Or , is it that the fish only experience the water around them?
They were restless a while.....now they seem ok....must have been akin to an earth shattering experience!!!!!!!!!!!