Rocco Mealtime Sensitive - Chicken & Duck - dog dry food

At first it was fine, but after a few weeks my dog started having stomach problems all the time, with indigestion, complaining all night and vomiting. Plus, it really constipates him, there's loads of fat and hardly any fibre, he barely poos, just a tiny ball with a lot of effort. It doesn't suit him at all, I won't even be able to finish the first bag.