Hello and welcome. Your tank has to be well established to support an anemone. The will host with several corals like hairy mushrooms or even a Goniopora as mine have hosted with. Also bear in mind that a clown fish does not need to host with a coral to live a full and healthy life. Anemone will often move and get caught in the current and end up dying if they get sucked into the return/suction line. I have Colt coral, xenia, toadstool, Goniopora, monti cap, zoe's, and birds nest. For fish i have yellow watchman goby, spotted cardinals, ocell and tomato clowns, coral beauty, and blue/green chromis in my 40G breeder.