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Old 03-18-2013, 03:56 PM   #1
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calcium levels high

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So I tested my calcium and everything else yesterday a day after my weekly water change and it was at 540! But my alkalinity was at 11 dKh. And all other tests ammonia nitrites nitrates phosphates were at 0. Should be worried? I know high calcium usually mean low dKh but its not. Does this mean I need more coral lol
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Old 03-18-2013, 04:03 PM   #2
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That's high but not bad. What saltmix are you using? I exclusively use Kent for that exact reason. It mixes up to 550 ppm which I like since I'm nearing 200 corals in my 46 gallon
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Old 03-18-2013, 04:08 PM   #3
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Can you run it down to the lfs for a second opinion to rule out a defective test kit.
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Old 03-18-2013, 04:10 PM   #4
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I use reef crystals. I only have about 5 corals and 5 fish(1 clarkii, lawnmower blenny, spotted mandarin, coral beauty and a PJ) in my 55ut just ordered 12 frags so that'll prob make a difference!
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Old 03-18-2013, 04:11 PM   #5
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Quote:
Originally Posted by melosu58 View Post
Can you run it down to the lfs for a second opinion to rule out a defective test kit.
Yes I was gonna do that after work today to double check but I triple tested yesterday and got same results

Also all livestock including anemone and shrimp are doing great so was just wondering why it could be so high
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Old 03-18-2013, 04:24 PM   #6
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Whats your salinity?
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Old 03-18-2013, 04:32 PM   #7
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Salinity shouldn't have a issue with calcium being high but its 1.025
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Old 03-18-2013, 04:55 PM   #8
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I read a report a while back by someone who did significant testing on those levels in the aquarium. Lots of numbers and chemical jargon. But in the end there were a few points that might help your confidence.
1. Calc above around 420-440 ( I don't remember exact numbers) do not harm corals but don't help either. Coral growth peaks in that range and doesn't get better with added calc. Nor was there any harm with excessive levels EXCEPT on your equipment. Pumps etc will see scaling.
2. Alk above 12dKh will enhance coral growth even more. There is no maximum dKh for corals however you will see excessive scaling on the equipment when it gets too high (above 12dKh).

Based on that you are not in a life or death situation with your corals. But you equipment may see excessive scaling. The fact that both numbers are very high indicates you may also have very high Magnesium levels otherwise the carbonates and calc would precipitate out of solution.
If you've recently opened a new bucket of salt i would put the lid on tight and roll it around and flip it over many times to stir it up. I have found that sometimes the salt mixture is not well distributed within the bucket very well.
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Old 03-18-2013, 06:37 PM   #9
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Are you dosing any additives? It seems strange that your calc would be that high right out of the bag. I too use reef crystals, and i would love if it mixed the high for me
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Old 03-18-2013, 06:45 PM   #10
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No dosing and it is a new bucket of salt, I will mix up the bucket tonight and again before my weekly water change on Saturday. But other then that I should have no worry about it being high since nothing is being harmed or looks like its being affected by it? Actually in the last month since I started using reef crystals (was using normal instant ocean sea salt before) my coral growth has seemed to take off. My frogspawn has grown 3 new heads and my Duncan has grown like 6 and my welso lobo has a couple new folds
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