the sweeper tentacles can be lured out during the day (because who's awake when corals are) by turkey basting the juice that accompanies frozen brine or
mysis shrimp. I turn off the filtration in my tank and thaw a cube of Marine Cuisine in a cup of hot water. Using the baster I feed the fish the large particles and the brain gets the nutrient layden juice. I also feed my other LPS like my hammer, candycane, torch etc., they however will eat the large stuff like the fish do. Have fun drawing out the tentacles on your corals, it is pretty fascinating to watch them feed. I use the baster to target individual corals so that I don't flood the tank with too many nutrients and proteins.