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Old 11-15-2013, 02:52 PM   #1
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Can't keep alk or calcium up

I had some issues before with my alk dropping too low and managed to fix it with adding some sodium bicarbonate to my tank in the past. Now I am having a dip in both my calcium and alkalinity with my dkh measuring at 5 and my calcium at 340ppm.

I've attempted to add kalkwasser to my tank by slowly dripping it but that hasn't solved the problem at all and in fact my alk dropped another point since yesterday.

I have a 20g mixed reef with a 10g refugium.

I don't want to add too much kalkwasser because I am worried about making things worse if added improperly.

Does anyone have any suggestions for what I should try next?
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Old 11-15-2013, 03:20 PM   #2
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If your test kits are accurate, then I would purchase a pair of dosing pumps and drip 2 part. What is your mag level?
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Old 11-15-2013, 06:54 PM   #3
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I agree, check the magnesium levels.
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Old 11-16-2013, 04:27 PM   #4
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Just went out and bought a red sea test kit and came up with

1400 magnesium
320 calcium
6.3 dKH
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Old 11-16-2013, 04:56 PM   #5
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That settles the question of magnesium. Looks like dosing a 2 part is the right way for you to proceed.
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Old 11-16-2013, 04:56 PM   #6
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Does that match your current numbers from the other test kit?
You can get a 2 part kit from Bulk Reef Supply. They even sell dosing pumps.
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Old 11-16-2013, 05:50 PM   #7
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Quote:
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Does that match your current numbers from the other test kit?
You can get a 2 part kit from Bulk Reef Supply. They even sell dosing pumps.
It's close enough that I accept its numbers. I was using the API test kits earlier.
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Old 11-16-2013, 05:54 PM   #8
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Does that match your current numbers from the other test kit?
You can get a 2 part kit from Bulk Reef Supply. They even sell dosing pumps.
Wouldn't kalkwasser suffice to dose for both the aIk and calcium?
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Old 11-16-2013, 06:14 PM   #9
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Kalkwasser is for calcium only. You can use baking soda for alk. I would guess your pH is also low since it depends on alk. Best way to be back on track is do a large pwc. I would raise the alk to right level fist before dosing calc.
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Old 11-16-2013, 06:15 PM   #10
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Kalkwasser is not really for raising numbers. It's for keeping them stable. I would use a 2 part dosing regimen or a better salt mix closer to NSW.
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