Who owns the fish?

[Levian]

these are fun. I've done Jess' version before, but not this one. but I will start now

edit: for those of us too lazy to write on stupid paper: Who own the Zebra?

edit2: and everyone who's fond of logic puzzles should go to this site and download at least Sherlock, and also Baker Street and perhaps Watson's Map if you feel the other two are too easy. Sherlock is the game version of the puzzle in this thread. locating who lives in what house etc.