It seems that everyone has slight different approach in feeding. I used to just feed once a day when I had Oscar and Green terror, homemade food that is. It's just this time my tank is in the bedroom, it's kinda easy to overfeed because they're always looking at me and begging for food. I should think more of their health by feeding less, and less amount.
I've red that green peas is really good for their digestive tract, I'll see if they like it.