Quote Originally Posted by Radix97 View Post
Yes, the guppies are about half the size of the rosy reds. im getting more guppies soon
That might be your issue. As mine got older, he started to ignore guppies but would go for minnows immediately. I've run into that with frogs as well; as they get older they will ignore food items that are very small. Have you tried frozen/thawed fish?