Who knows how to solve this test?

I have a test for you. Let's see who knows the solution

Here's the test:

1. There are 5 houses, each of the other colors.

2. In each house, one person, each of a different nationality, lives.

3. Every tenant of every house likes a certain drink, smokes a certain brand of cigarettes, and owns a certain pet. 4. None of the 5 people drink the same drink, do not smoke the same brand of cigarettes and do not own the same pet.

4. The British lives in the red house.

5. The Swede has a dog.

6. Danish drinks tea with pleasure.

7. The green house is on the left of the white house.

8. The tenant of the green house drinks coffee.

9. The person who smokes Pall Mall has a bird.

10. The tenant who lives in the middle house drinks milk.

11. Dunhill's smoker's house smokes.

12. The Norwegian lives in the first house.

13. The Marlboro smoker lives next to the one who has a cat.

14. The tenant who has a horse lives next to Dunhill who smokes.

15. The Winfield smoker drinks beer.

16. The Norwegian lives next to the blue house.

17. The German smokes Rothmans.

18. The Marlboro smoker has a neighbor who drinks water

The question is:
Who Owns the Fish Aquarium?