what do you set your lights to with a deep mixed reef tank? I have mine set at factory settings but want to make sure it's strong enough or not too strong for my coral. It's a 21" deep 72" long reef tank...I have alveopora, zoas and acro at the top and duncans, xenia, toadstool leather, Kenya and more zoa in the middle and some low light coral at the bottom...any help is appreciated

