I have a rescued cat, he is 1 year and 8 months. I noticed that he eats little. When he's young I tried to give him canned food but he doesnt like it. So I am buying fresh fish for him and he eats it. After sometime his mood in food changes. He don't like to eat fish so I introduced him some fresh shrimps. He eats it. He eats 8-9 pieces smal sized shrimps morning and eve only. And then I leave some dry royal canin food at the counter. His weight is about 8lbs. He plays with my younger rescued cat too. Is it normal?