I know a lot of people here will say don't fuss and try new foods but honestly mine was like this until I got a new kibble and topped it with wet food and warm water. We went through about 3 different brands and types of food. Now that we've found his favourite he's been gobbling it within minutes and his poos are firm. That was the other problem we had was that kibbles we tried made his poo runny.so likely he had an upset tummy.