Hi Cheryl-
I think that adding canned to dry food is a great idea for every dog and especially important for a dog that has had urinary issues. The extra moisture helps keep the tract “flushed” out.
I add canned food to my dogs’ kibble meals every morning. Yes, you will have to decrease the amount of kibble you feed to compensate for the canned you are adding. I don’t go by the guide lines on the bag. I go by calories. I just figure that most of the kibble I feed is about 400 calories a cup and most of the canned I feed is about 400 calories per can. So when I feed them 1/4 of a can, I decrease their kibble by 1/4 cup. Even though some of the kibble and canned I feed, have different calories, I still use this equation and it seems to work out fine. If your pup starts to gain then feed a little less or visa versa.
For my dogs’ evening meals, I usually add some fresh ingredients such as eggs, sardines or left overs.
If the guidelines on the bag work for you, then… better yet! Wellness is a great brand. I hope it works out for you. Good luck!
