Definatly, ive found if you over skim the water the soft corals dont do to well i would try skim during the day and off at night.
Also are you testing iodine? If so, what is your reading... if not maybe you should. I've had the same issues and it has subsided since dosing (but not without testing first) iodine. BTW, strangely enough, my iodine reading from the test kit is 0.09 (way high according to the literature)... BUT, when I got this reading I panicked and was going to do a massive water change except I looked at the tank conditions and realized the corals looked much better (better color, better extension) so I left it alone. It's been more than a week and still corals look good. My conclusion ... test kit is NOT accurate.
Hey Chalv, just out of curiosity, apart from feeding your fish, what are you feeding your corals? softies & LPS?
What kit? I got a seachem one and took one look at the instuctions and put it down
Oh, and one more thing... my tank is running at a temp of 82F and SG is 1.026. Temp is higher than I'd like but we're in the middle of a really hot summer ... SG I was also running around 1.023 when my corals looked 'droopy' and have since raised SG after reading many discussions on the forum. You might want to bring your SG up as well ... but, go slowly.