Nice plant, while you can start it out in water, after you remove the plant from the fruit, make sure you let it dry, at least over night. By doing this you can plant directly into the ground, and prevents rot of the roots. You can only get about 3 pineapple out a plant before it wont produce fruit. Take about a year to get a full fruit, and every fruit after that is smaller. On a side note, the pineapple is the only bromeliad that is edible.
If there is one thing I like as much as fish, its pineapple.... Mahalo