I have only had it four days, and it stayed where I put it. She expands during the day and contracts into its crevice in the evening, but there's little white spots around it and slight tinge of brown at the tips. maybe it's not brown maybe it's red tipped. Cannot really tell. I may be a little colored lm blind in discerning the color of the tip, but it's reddish brown. Also I change the reef wave setting so that the reef wave only goes forward and not reverse. Thinking therefore it should not get sucked in.