I had 2 Kessil A360w's over a 48" tank and I had some of my large sps colonies start to stn at the base from shadowing! They don't always adapt and they'll never get rid of the shadowing unless you double the recommended light per 24".
stn stopped immediately when I took the kessils down and put my cheap Chinese led's back up. I've since switched to 2 Radion gen 3 pro's and love them!
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