Looking for a high quality wet food for cats with urinate tract issues. One of my cats was out of hills science diet c/d wet food by their vet when they experienced urinate blockage. I’m unimpressed with the quality for hills science diets’ ingredients and am trying to find a better alternative. I’ve read that it’s the ash content that’s of concern for urinary issues so looking for foods with ash content as low or lower that the hills’ which is 6.2. Does any one have recommendations?