Kim, I'm so sorry to hear that Pouncer may have stones. Here's a good link that explains more about different cystals and stones http://www.peteducation.com/article....+2142&aid=2729. From what I've read it sounds like surgery may be required to remove bladder stones if this is what Pouncer has. Lots of prayers and positive thoughts are being sent his way. Please take care. (((HUGS)))