mag levels
Printed From: Utah Reefs
Category: Specialized Discussion
Forum Name: Reef Chemistry
Forum Description: A place to discuss reef chemistry.
URL: http://www.utahreefs.com/forum/forum_posts.asp?TID=41879
Printed Date: October 10 2025 at 12:18pm
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Topic: mag levels
Posted By: jmw
Subject: mag levels
Date Posted: June 24 2010 at 6:13pm
| What's the best way to lower magnesium levels? |
Replies:
Posted By: bugzme
Date Posted: June 24 2010 at 6:14pm
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Why? what are they at? ------------- Jeff 125 tank 50 gallon sump T-5 lighting Rum drinker, Carbon User I KNOW ROCKS THAT ARE YOUNGER THEN ME!! I AM A Realist! I write what I think!! |
Posted By: jmw
Date Posted: June 24 2010 at 6:27pm
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around 1440ppm cal 340alk 8.8
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Posted By: BobC63
Date Posted: June 24 2010 at 6:39pm
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I would just stop dosing any Mag and let it lower itself over time.
1440 ppm is a bit high, but it is not dangerously high IMO.
Other choice is to do a partial water change with newly made up SW that is lower in Mg. ------------- - My Current Tank: 65g Starfire (sitting empty for 2+ years) - * Marine & Reef tanks since 1977 * |
Posted By: jmw
Date Posted: June 24 2010 at 6:45pm
| thanks |
Posted By: downhill_biker
Date Posted: June 24 2010 at 7:05pm
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I say you are low...but I'm a bit crazy. There are many of us that keep our mag at 1500-1600 or even higher, up to 1800. Some of those people include me, Jared Butler, Eric (Marine Aquatics), Tyree...ect. The theory behind keeping your Mg high is to suppress your coralline algae growth and leave more calcium available in the water for your corals. It is said that coralline uses up calcium something like 8x or 10x faster than most corals. I say leave it alone, and see how it goes over the next couple months. You will probably like it and so will your corals. If you do like it you can probably bump it up to 1500-1600 range with good stability. ------------- Make sure you post your best pictures every month in our POTM forum. |
Posted By: bugzme
Date Posted: June 24 2010 at 7:08pm
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I keep my mg at 1500+! Raise your calcium up to 420 but do it slowly ------------- Jeff 125 tank 50 gallon sump T-5 lighting Rum drinker, Carbon User I KNOW ROCKS THAT ARE YOUNGER THEN ME!! I AM A Realist! I write what I think!! |
Posted By: Mark Peterson
Date Posted: June 24 2010 at 7:44pm
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That Mg level is no problem at all. I would definitely raise the Ca and suggest raising the Alk as well. With Alk closer to 10 and Ca closer to 450 the Mg will be more effectively utilized by the coral.
------------- Reefkeeping Tips, & quick, easy setup tricks: www.utahreefs.com/forum/forum_posts.asp?TID=9244 Pay it forward - become a paid WMAS member 
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Posted By: bugzme
Date Posted: June 24 2010 at 8:14pm
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I agree Mark ------------- Jeff 125 tank 50 gallon sump T-5 lighting Rum drinker, Carbon User I KNOW ROCKS THAT ARE YOUNGER THEN ME!! I AM A Realist! I write what I think!! |
Posted By: jmw
Date Posted: June 24 2010 at 8:44pm
| right on!!! |
Posted By: kody72
Date Posted: June 25 2010 at 12:55am
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+1 ------------- http://www.utahreefs.com/forum/forum_posts.asp?TID=60612&title=kody72-fishroom" rel="nofollow - KODY72 FISHROOM BUILD 281g DT 187g Rimless Frag ATI PM lighting SRO DSCR-300ext 8013908179 |