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Old 02-15-2014, 05:49 PM   #1
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Mag and Cal levels

I use a red sea reef foundation kit and admittedly don't test as often as I should. I switched my salt to Kent and my mag and calcium levels are off the chart. Literally. I am getting 800 for calcium and over 1600 for mag and 9.8 for alk. Is this possible. Will it hurt anything?? I want to raise my alk a little cause I think it must be why my torch is not opening properly but everything else seems to be good. Except my snails. They seems to be disappearing.

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Old 02-15-2014, 06:32 PM   #2
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I have a hard time believing those numbers. I would test again to see what they say a second time, especially since Kent's numbers aren't close to being that high or even one with 'the most' calcium and such in their salt. I would also suggest stirring the salt around, could also be an off patch that just didn't get stirred in as well as it should have.
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Old 02-16-2014, 12:09 PM   #3
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A newly mixed reef saltwater with a salinity of 1.026 can not have more than 500 of calcium. I would question your test kits. How do you measure your salinity?
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Old 02-16-2014, 12:49 PM   #4
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I test with a refractometer. I am going to wash everything with r/o water again and retest today. Water is at 1.026 and 27 degrees.

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Old 02-16-2014, 01:56 PM   #5
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When was the last time you calibrated your refractometer? I would verify its accuracy. Trace elements have direct proportion with salinity in salt mix.
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Old 02-16-2014, 02:52 PM   #6
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I just recalibrated and unless my calibration fluid is out I was actually low. My 1.026 solution read 1.030.

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Old 02-16-2014, 03:08 PM   #7
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Test your ro/di if it reads 1.000
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Old 02-16-2014, 03:48 PM   #8
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It does now. Gonna have to keep a closer eye on the refractometer. Going to retest my tank right now then do a water change and slowly raise the salinity again. Explains why my snails have been disappearing.

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Old 02-16-2014, 04:12 PM   #9
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Agh. I should never test and watch TV at the same time. I used a full 10 ml of water for each test last night. Turns out my calcium is 460 mag is only 980 and alk is 9.8. My mag and alk used to be bang on with instant ocean but are dropping since switching to Kent salt. Does this sound about right. If so I should switch back.

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Old 02-16-2014, 04:55 PM   #10
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I believe Kent's levels are higher than io salts, but in reality doesn't matter. Those levels are fine.
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