This is just my opinion but i also have a 72" tank and was looking for a 72" light fixture forever, ended going with a 60" 8 bulb power module and love it. I was worried that the edges would not have enough light but there is not a spot in my tank i cat grow my sps. It is just something to consider, another is the 5 foot bulbs can be difficult to find in Edmonton little lone Red Deer. Just a thought and good luck finding a light.
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360 gallon sps reef, 180 gal sump, bubble king supermarine 300, 4xmp40Wes, 2 x 6215 tunze waveboxes, 4 ghl mitras
360 Reef Tank
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