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Old 09/15/2010, 07:56 PM   #1
Praben
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Question Optimal calcium, alkalinity, and magnesium levels?

What is the consensus, or anybodies opinion, on the optimal levels to try and keep calcium, alkalinity, and magnesium at (for a mixed soft/LPS/SPS reef) Also, what is a suitable range for each?

Mine are currently:
Ca: 400
Alk: 7 dkh
Mag: 1410


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Old 09/15/2010, 08:26 PM   #2
drcarr
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"optimal" will vary upon who responds but average range for my mixed reef tank is
Ca: 400-425
Alk: 9-10 dkh
Mag: 1375-1450


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Old 09/16/2010, 07:19 AM   #3
Sugar Magnolia
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Bookmark for future reference - http://www.reefkeeping.com/issues/2004-05/rhf/index.php


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Old 09/16/2010, 08:07 AM   #4
3skitch3
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Same thing dr said.
Cal-400-425
Kh 9-10
But ultimately if you want the best growth you can get it's about maintaining those levels the best you can. The more stable your alk and cal are the better your growth. That's why people spend more money on reef crystals because after the mix the water comes out almost exactly the same alk and cal as their water in there tank. Hope this helps.


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Old 09/16/2010, 01:10 PM   #5
Praben
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Thanks for the good reference info. I've been up and running 9months (125gal mixed reef). About a month ago I got the mag test kit (only test kit i didnt have) and it tested about 1100, I brought it up slowly over last month to 1400. I had virtually no coraline growth before but it is popping up nicely now. I'm working on raising my dkh up now, very slowly (was getting 6, recently 7-8). I just wanted to confirm what my targets should be. Thanks!


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Old 09/16/2010, 01:13 PM   #6
outy
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alk 8-10 not 7 not 11
cal 400-450 not 375 not 500
mag 1375-1450 not 1300 not 1500

the idea is to mimic natural sea water


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Old 09/29/2010, 12:55 PM   #7
thirst
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what if your alk and calcium are out of balance? let's say your alk is at 12, but ca is at 390. Could that happen? How does that happen? and how do you fix it?


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Old 09/29/2010, 01:11 PM   #8
Flems
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Quote:
Originally Posted by thirst View Post
what if your alk and calcium are out of balance? let's say your alk is at 12, but ca is at 390. Could that happen? How does that happen? and how do you fix it?
You could allow the ALK to drop over time and dose Calcium to slowly bring it back into proportion.


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