Learning Curve

I think Lucky has figured out that fish food comes in the orange container. He keeps his eye on it and gets excited now when I pick it up. He now knows what food looks like and comes to the top of the bowl to feed. Lucky, we hope he's Lucky, anyway, came without instructions. So am I feeding him too little or too much? Now that he knows the nature of this brand of fish food he comes to get it and finish it off in one session. Yesterday, I caught him looking out the window at the bird feeder...