zoas drooping

[aqua1dude]

I purchased my first zoas about 2 weeks ago. I noticed that they tend to droop. I was wondering if it's due to light. The first image shows the zoas early when the lights turn on and the second photo shows them later I. The day. My Radion is in acclimation mode and the zoas are about 5 inches off the sand. Is this something I should worry about.