When your lights go off you can wait about an hour to see if you see them, usually they are hard to find and will take some searching. If you turn off your lights and see them within 10-15 mins, then they are hungry and ready to look for some food. If you find them you can turn off your flow and move them close to the aiptaisa and it should be gone it the morning or the next day. Thats what happen to me and I got to the point where I had no more aiptasia left and I would turn off the lights and 10 mins I would see 5-10 looking for food. If you see them during the light hours then they are really starve or about to die. I had a couple of them do that but I don't think they made it, because I moved them to aiptaisa but I think the move might have been too much.
As for my tank, it's gonig to take a while. I just lost my mini colonie of green slimer, it's not an expensive peice but I started out with an 1/2" frag and grew it pretty nicely. Hopefully things start to turn. Always trying to look on the brighter side. lol