no worries... they are highly contractile, like many other coral and anemone polyps. Even during growth spurts you may notice some contraction and a shiny mucus tunic. As long as the animal return to full extension in 48 hours or so, its all good.
If not, increase water flow and watch for other signs/symptoms.
often times when acclemating to new sorrundings it can take up to a week for a coral to return to its normal state. baring any large water parameter changes
how much water flow is good this leather can be seen swaying ever so slitely is that enouph and I have two 250w 14k where should I place the leather in relation to the lights I was thinking mid tank
Well I have a 70 gallaon tank with two Seio M820 which are rated for 820GPH plus my return is prity strong maybe Ill move the leather up a little bit because I have it close to the bottom and there is more flow up there.this pic is of when I set up my tank.