so i have a couple of lps corals and i am new to feeding them. i feed them at night a homemade batch of food. it's clams, fresh tuna, fresh swordfish, scallops, and shrimp all blended. the corals are fed with a turkey baster. when feeding everything goes right the corals put out their tentical things and the food sticks to them all nice like. but they never contract them until i turn the powerheads back on. but when i turn the powerheads back on some of their tenticles and food are ripped away from the corals. how can i prevent this? or is this just natural?