I hope not cause mine are under halides. The thing about hammers is that they are fairly easy corals. Acclimating them is another thing. Once they do acclimate, your home free, but whether or not they will is up to them. They don't take change to well.
Mine took 2 months to display that he was dead. I was shooting a turkey baster near him and his tenticles blew right off. That was my first sign. After enough blew off, I could see some rotted tissue in the middle of each branch. That totally explained my new algae out break!! But I removed the branches one by one until I was left with only one. I thought even that one wouldn't make it, but it gradually recovered and is currently showing some flourescent green hues under the actinics. He has a long way to go, but as it stands I think that he's OK. Lemme find the absolute first problem that I posted with him.
They said it was normal but in retrospect, I think it was an indication of deteriorating health...