They have the foot, seen them use it to bail out of the way from hermit crabs, etc. They can be amazingly fast  , flipping with the foot. But they also are able to go on the glass with it. Been told that queens tend to go on glass or anything they can climb. They also have that long snout for feeding. 
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Mike
150g reef, 55g sump, T5's, Vertech 200A, Profilux III - German made is highly over rated, should just say Gerpan made.
Reefkeeper - individual obsessed with placing disturbing amounts of electricity and seawater in close proximity for the purpose of maintaining live coral reef organisms.
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