I'm looking into buying a green ricordia polyp, but don't know much about them. I need to know if they are a good coral to start with and what their needs are. Are they like mushrooms? Do they need to be fed? Do they have high light requirements. My tank has beenrunning for months and it's time to get a coral, and I like the pics I've seen of ricordia. I have 130W of PC light over a 29G, 18" tall tank. My nitrates are now down to 5ppm.