Einstein's Riddle

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There are 5 houses in five different colors
In each house lives a different nationality.
These 5 owners drink a certain beverage, smoke a certain brand of cigar and keep a certain pet.
No owners have the same pet, smoke the same brand of cigar, or drink the same beverage.

The CLUES:

The Brit lives in the Red house.
The Swede keeps dogs as pets.
The Dane Drinks tea.
The Green House is on the left of the White House.
The Green House's owner drinks coffee.
The person who smokes Pall Mall rears birds.
The owner of the yellow house smokes Dunhill.
The man in the center house drinks milk.
The Norwegian lives in the first house.
The man who smokes Blends lives next to the one who keeps cats
The man who keeps horses lives next to the man who smokes Dunhill.
The man who smokes Blue Master drinks beer.
The German smokes Prince.
The Norwegian lives next to the Blue House.
The man who smokes Blends has a neighbor who drinks water.
The QUESTION:

Who owns the fish?

Tysken.