Thanks Growler for the links. I have been using the list at http://www.felinecrf.org/canned_food...od_data_tables
but so many of them are high in phosphorus it makes for a difficult choice. Especially since he is so fussy about what he eats. Last night I gave him Innova beef and barley stew wet with his low protein wet and he ate his usual 1/8 can of low protein and 3/4 can of Innova. So that was a hit and relatively low in phosphorus. I will go out and buy a couple of cans of the others you recommended and see if he will eat them. I noticed that Petsmart is now carrying By Nature organic wet food and it has a very good phosphorus content by the looks of things.
Thanks hazel for your good wishes.