I kept a Condy anemone in my 45 hex, tall aquarium, power compact with 2-96w vho lights, with not problems at all. However, Condy anemones are easy to keep, unlike the Rose you are asking about. I have since moved my Condy to a larger tank with MH lighting, but it is doing the same as it did in my smaller tank. Right now I have a green carpet anemone in the smaller tank with a sebae clown. I am watching them very very closely and if I see any signs of stress, I will move them to my big tank. Right now all is great, but I know at any time things could change. If all is well after about 4 months I believe I will call this successful, for now it is way too soon as I have only had this carpet for a month.