I am interested in getting into Corals and was wondering what are some good starters for a beginner. My tank has been up for almost a year as a FOWLR. My goal would be to get into some Clams eventually. I have added a Yellow Polyp frag sofar that is doing well. I am interested in the Zoos listed on CanadianReef.com. Would these be a good started into the world of Corals? My lighting consists of four 55watt PC(three 50/50 and one 10K) soon to be upgrading to MH 250W 10K. The tank is a 90gal with a ammiracle sump running bioballs and a insump Seaclone skimmer. I have about twenty pounds of lava and ten pounds of Live Rock( ten bucks a pound locally

). Other than that I run a UV sterilizer all the time. I have a Yellow Tang, four Green Chromis, Diadema Dotty, False Percula, Maroon Clown, Cleaner Shrimp, Peppermint Shrimp, Hermit Crabs, Turbo's, Bumble Bee's, Astrea's,Ceriths, and a large Feather Duster. Will I have to use additives, if so what is recommended? Thanks for your time, I hope I have supplied enough info. Thanks
Marcus