Out of curiosity, what food are you now using?

I'll be honest that up until a couple of months ago, I knew little about the ideal cat diet. I still know less than I arguably need to know. Out of some degree of selfishness and ignorance, I fed my cats premium dry food. Even when Sophie started to go downhill (and she also had her own over grooming issues for years), I didn't understand the role her dry diet may have played in her undoing. When Henry started to have some chronic dehydration issues, I decided to switch him to canned food. That's when I realized that my cats had long eaten a bad diet. I've been trying to choose canned food for him that has a more ideal mix of protein, fat and carbs. Unfortunately, he cares for some more than others, and doesn't like some of the brands/flavors that are grain free. I have yet to try a raw diet, although I haven't rule it out. He's such a frustrating eater anyway. He eats, if I'm lucky, a teaspoon of food at a time. Getting enough canned food into him has turned into a full-time job.