Typically starting off at the bottom for all corals is usually a good idea..
Beyond that you try to place them in an area where they will receive the amount of light, flow, etc... they require based on the type of coral and the specifics of your tank..
Some choose to take them off the plugs.. Some do not.. Choice is yours and some of that depends on the type of corals.
Please turn down the blue channel in the future for any pictures... The color rendition,etc.. just plain sucks which makes it difficult to even see what you really have there..