my angels are pretty much the same, but they still only get fed a pinch or two when i get home from work, as the general rule says, just enough for them to eat in a minute or two.
but between them and the plattys that can be a lot of food on an evening.
i also sometimes give them a pinch of something on a morning before i leave the house, but with it being so dark now most of the fish are 'sleeping'.
my angels will even eat off the bottom when i put an algae tab in for the corys.
maybe i am underfeeding them, maybe they are greedy.
but a week ago i added 10 neon tetra, and still have 10 neons despite everyones warnings ;-)