Proper feeding of my fish in reef tank...am I over-feeding?

[newreefer_59]

have a 150 gallon reef tank comprised of SPS, LPS and some softies along with 16 reef friendly fish. ALL looks healthy, but wondering if I am over feeding. Daily, I give a few pinches of marine pellets and a few pinches of Seaweed pellets as well as a piece of vegetation. I then break off a piece of brine shrimp about the size of a quarter and feed after it is thawed. Is this an adequate daily feeding or am I over-doing it? All food seems to go pretty quickly. Thought?