Jack Dempsey/feeding?

[Dorkel Marine 1]

Hello freshwater guys. I have a question about a Jack Dempsey Cichlid and its feeding. I've been feeding him pellets and frozen food. However my question is how much. he decided the other day to devour a good sized pearl danio. I didn't think he could catch one of those guys. They've been in the tank together for about 2 months. So I'm wondering if any of you guys have a Dempsey and what your feeding regime is. Thanx in advance George.