Feeding SPS question

[Aquattro]

I've fed my acros with various foods over the years, and while it's cool watching them eat, I'm not sure I saw any noticeable difference in any aspect of them. As Greg said, they re mostly self sufficient in their feeding, given proper lighting and water quality. But, I didn't see any harm in it, so I'll probably still feed once in a while, once I have some corals to feed again.