Moo loves milk, ice cream, yogurt, you name it, he'll eat it. I haven't tried Catsip yet (never heard of it till now).

I found the filters at Petco with all the other brands of filters. They come 2 in a pack and need to be changed every 60 ro 90 days. When I first bought it I THOUGHT it was a Drinkwell. But then I realized that Drinkwell's including the reservoir is over $60. I can't afford that right now that's why I chose the other one. Works just as well, even though the water reservoir is smaller than the Drinkwell.

I forgot to mention that they also have ice cream for cats in the frozen food isle!!!