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

[wingedfish]

Wow, do I ever under feed! I feed once, every other day and alternate between a half cube mysis or a pinch of Nls pellets. 9 fish sps dominated 70 gallon, almost two years old. I used to feed everyday but put them on a diet when they got fat. That was around 6 months ago.