For LPS corals I'd recommend reef nutrition foods like mysis feast, roe, etc. LRS reef frenzy us another great choice. Our LPS never like pellets very much.
I recommend letting them get the scraps from feeding thefish. The seem to get one they can get if you feed frozen. Works well if you dont rinse the food.
OH yeah throwing in some cyclopes with their food everynow and then works well too. Also one of the tricks I use is scrub any algae in the aquarium with a tooth brush and let the corals eat. All the sps and lps love it.