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Old 03-08-2013, 05:39 PM   #11
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I'm not really seeing a problem with the levels. The peak is obviously from you dosing the tank to raise the alkalinity, but then goes back down to normal. I fought with my tank and the alk levels being, what I thought to be low. Dosed and could never get it to stay up. I just had it stuck in my head that I had to get it up. My reef was fine before and was fine after...but messing with the alk levels sure made some things angry. If it works, don't fix it.
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Old 03-08-2013, 06:03 PM   #12
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I'm adding both alk and calcium buffers.


I'm fine if it doesn't need to be at 10. I thought I heard somewhere that 10 was a good number to hit. My bigger concern was that my calcium levels had dropped so low. About a month and a half ago I tested my calc levels at 330. Obviously very low. It just seemed to come out of no where and at that point my alk was 7.9.

What I want is to get my tank to a point where my calcium doesn't swing. I feel like my tank is too young as far as corals go to be consuming that much but maybe I'm over thinking it
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Old 03-08-2013, 06:11 PM   #13
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I'm in agreement with your tank being pretty lightly stocked in corals to be seeing such drastic swings. I would say your alk is low for the same reason mine is...if you figure it out let me know! Lol...
What I would do, test your alk and calcium right after you mix up your water. That will give you your baseline. It is just hard to believe all your stuff is being absorbed when there isn't that much in there to consume it. My calcium stays steady at 595 and my kh is always at 80 (breaks down to about 5 or 6 I think if the math is right), but this is with Kent salt mix. My point is that if it is stable and you have corals growing, then just let it go. Our fiddling with it can cause an issue, when there might not have been one to begin with. My test results are from Hanna checkers.
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Old 03-08-2013, 06:38 PM   #14
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If you're dosing both alk increaser and calcium that often on such a lightly stocked tank I would check your magnesium. I would bet you're low. Magnesium is a interesting element in the reef. It's not that it is important because your corals use it directly (they do use a tiny amount though), but because it asks a separator agent to keep calcium and carbonate from bonding and precipitating out. Watch this video in the link, it explains it much better than I can. http://youtu.be/mI52IyBtjp0
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