First, it seems you have 3 anemones in that picture. A nearly dead Condy on the top of the rock (in the crevice), a BLEACHED BTA wedged in between the rocks on the right, and the one you are trying to find out about, is a BLEACHED sebae anemone. I am thinking H. Crispa.
Both of those anemones need to be fed ASAP. They are not happy. If you are talking about a florescent fixture for lighting, that sebae will only get worse. They need metal halides or VERY high out put T5 fixture, and all of them NEED stable water parameters, and a tank that has been established for more than 6 months....
HTH but, I think an upgrade in lighting is needed, and you need to feed them...