Also, try to feed him things that are high in moisture content like canned foods instead of dry and add water to foods if you feed natural foods.
http://www.bichon.org/stones.htm
Calcium oxalate stones tend to occur in acidic urine so you should feed alkalizing (sp?) foods...Here is a link with foods that are/are not safe for dogs with calcium oxalate stones
http://www.bichon.org/stones.htm
This next one is good too
https://vmacs.vmth.ucdavis.edu/userp...liths.doc?html
Low
purine diets from what I have read are best for calcium oxalate stones.
I have one more link for you that I really liked, but I can't seem to find it right now. If I find it, I'll post it for you.
I've read different things about adding salt to their water, some positive, some negative. We decided not to do that because we feel it might Miko's condition worse, but some people choose to do it. Google and see if that's something you feel would be beneficial.