I keep two of these under my tank.
I like the fluorescent color spectrum, but when it comes to coral growth it's sustainable at best. Patches of GSP and Anthelia double up every 3 month-ish for me, and that's IF you put them near the top.
They aren't bad lights, and I've had decent success with these lights, but judging from your current setup, these Coralife lights are probably a waste of eletricity.
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