Why is my tank not consuming Calcium?

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*HOVA*

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I've had my tank up and running for about a year and a half and have been adding coral for about 6-8 months now. My tank is using about 15ml of Alk a day to maintain 8.6 but my Ca and Mg stay consistently high with Ca over 480 and Mg over 1480. I have a Red Sea Reefer 525 which is about 140G total volume and I change about 20% water weekly and use HW Reefer salt. I expected my fairly large WC to help keep up with dosing needs but I have yet to dose any Ca since I set my tank up.

Are my WC's just doing that good at keeping up or what could be the cause of no Ca consumption in my tank?
 
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AdamB

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Normal .what types of coral are you stocking ? Looks like your water changes are keeping up with calcium and mag.
Your alkalinity will always decline much faster than calcium and mag. I only check my alk once a week and check others once a month or longer.If I see a change in my alk I will test calcium and magnesium.
I dose 2 part with doser on my setup.
 

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You want to lower your magnesium level.

 
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*HOVA*

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I have a Trident and I also test with Salifert against it weekly to ensure it's properly calibrated.

I'm not sure how I would reduce Mg? I don't want to complicate things if I don't need to... I've seen people run elevated numbers with no issue so I'm not sure I'm at a terribly high number where that's a concern?
 

benboarder90

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if everything is doing well i would keep doing what you are doing. my tank is the same way. i like to say don't try to make a HAPPY kid Happy.
 
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