In my experience they usually only extend when there is something nearby it wants to eat. I had an acro beside one for months (about 2-3") and then out of nowhere one day it looked like a big spider web was covering it that was coming from the hydnophora. That acro was toast.
Good to know. I moved mine a bit farther away from the gorgonians.
12-15-2008, 10:22 PM
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