Not sure what's going on. 25g tank up for a year all params good. Put this anemone in yesterday and it was fine. Today it closed and opened like this. Was eating fine, obviously not anymore. Was drip acc for 2.5 hours. Thanks in advance!
Your sand bed is incredibly clean for a year old tank! And it's on a dead/bleached coral? Do you keep other types of anemone or corals? Tell us what your water parameters are, just good doesn't tell us much. I wouldn't feed it again, that can be stressful and it shouldn't need freezing anyway. Your lighting should be enough for it to survive. If the tank is a year old have you wet changed the bulbs? T5 need to be replaced about every 8 months.