Ok, here goes. Short and sweet. My Benjamin had surgery for kidney stones a month ago. They removed 40-50 stones. I got the results of the tests today. Magnesium Ammonium Phosphate Trihydrate 100%. Now I need to find a Urinary Acidifier for him. Does anyone out in ferret land have any knowledge of this? If so PLEASE e-mail me at Tikki [log in to unmask] Thanks a bunch :-) Terry and the Energized 18 [Posted in FML issue 2439]