well i dont do much special. probably twice a week, i turn off the powerheads, and i squirt a small amount of food mixture in and around my sps. i dont know if it does any good, but i do think they can use food source so i figure it cant hurt any.
2-4 times a week a mix of rod's, rotifers, cyclops, PE mysis, h2ocean mysis. each time it's probably the equivalent of 2 cubes (except 1/2 that for rod's).
oh, and i feed spectrum pellets pretty much everyday.
i have lots of sps and lps, some dendros, and like 8 fish