Hello! Newbie here. I recently just got two guinea pigs two weeks ago. At first, or at least I thought they were eating all their food. When I saw the bottom of the bowl, even though there was still some food in there I would refill it. But now, they only eat the colorful stuff out of the food and that?s it. It seems they recently started doing this. Every time they hear the food bag they squeak and it?s a bit of a high pitched squeak. Which I read that high squeak pitch means their annoyed. But anyway, they are about 9 weeks old and they won?t eat anything except the colorful stuff and hay. They eat spinach, but I?m still all new to this and I don?t want my guinea pigs to die. So I would appreciate any advice.