Almost the same issue with me, no no3 and sometimes lots of po4. The colours on my sps are awesome tho so can't complain but the po4 won't go down without no3 they drag each other down....
How's your bioload, how about your feeding? You must be adding enough nitrates in your food that keeps the corals fed and healthy but not enough to stabilize your Phosphates.
Your system is likely using up any nitrates that you add.
04-04-2017, 01:41 AM
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