I've had this sebae anemone for a couple months now, and he's always open and seems really happy. I feed him a few times per week of very small scallops, mysid shrimp, and also feed tank phytoplankton. From the attached pics, you may or may not be able to see that part of it looks shriveled up. It is noticeably smaller in total size. Is my anemone about to split?? Or is it sick?? I just walked by 2 hours ago, and it was spread open likenormal and just a few mins. ago, shriveled up. I have 3-150 watt MH bulbs and 4-96 watt PC bulbs. the tank is a 135 with weekly water changes of 15-20%. This is the first week, however, that I haven't changed water yet-will change tomorrow or possibly tonight.