This imported little toadstool is quite unique as far as corals go. In the wild they are found in deeper waters. Within your aquarium environment place them in the middle third of the aquarium where they will get moderate currents and moderate to high lighting. Leave a few inches around them and consider that they will often begin to shade corals around them as they grow larger. Although they are partially photosynthetic they do require occasional feedings. On occasion you may see this toadstool retract its polyps and go through a shedding phase. This is absolutely nothing to worry about. Sometimes they even remain closed for a few days after, this is completely natural.