Lowering alk is going to yield better colour, for ur calcium level it should be around 8 for ur tank to be balanced. I run at 400 and 7 great colours.
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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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