The feeding thing is interesting. I do have Angels and have had for quite awhile now. I do feed more than once a day too and always have. I am pretty sure I over feed but I always want to make certain that the bottom fish get plenty to eat. I feed different kinds of food at each feeding. I do floating crisps, bloodworm's on top and some sinking pellets for the bottom fish. I also over clean to compensate for over cleaning.
“The greatness of a nation and its moral progress can be judged by the way its animals are treated” Mahatma Gandhi