You need to watch them closely when you first place them and move if they show signs of being unhappy. Some are collected in shady over hanging areas and other are collected from the reef flats right out in the open where they cook in the sun all day long I have talked to a few divers in Fla. and that seems to be the story they all tell,since most people don't know exactly where there specimen was collected. The main things would be to have good water quality,good acclimation techniques,and pick a healthy specimen from the start.I have seen people go to LFS and try to buy the stuff that does not look so good for a cheaper price and then come back wondering why they had problems with it.