Are there any types of corals that will survive without direct light? I have an overhang that shades a good area of open rock that I feel would look nice with something on it. Problem is, I have no idea what would work well here. My current system is 125 gallon tank with ~1000watts of light. 3 250w 10k metal halides and ~250w of actinic. There seems to be a modest amount of light in the shaded areas, so I was hoping that maybe some of the lower light corals would grow there. If corals are not an option, what else may I be able to place in the baren spots under the overhang?