Acctually Corrina, that method has been disporven and most vets will use medicine such as Reglan that moves the hair ball through the Digestive system. Also, I'm not sure about dried up pineapple, but pineapple is high in suger and shoul not be given to bunny alot.

The best prevention is HAY, unlimited amounts of it!!! Timothy hay for adult bunnies and Alpha for bunnies under One.

Congrats Luckies! Bunnies are the best!

Ash