How do you lower magnesium?

plancton · 03/14/2009, 01:01 AM

I added a mag supplement that increase Mag levels from 1600 to 1800ppm instantly, and some of the corals became pastel looking. It seems the Mag is to blame. How do I lower it?.

Im also using seachem advantage calcium which mantains Mag, does that mean Mag will be 1800ppm forever as long as I add this supplement?, or that amount is to high and it should be consumed and be lower with time?

Or what other method is there to lower the mag levels?

Harley-J · 03/14/2009, 02:06 AM

Time is the essence..I would stop adding anything till the levels get back to normal.

plancton · 03/14/2009, 02:26 AM

Yes but if I stop adding advantage calcium, calcium level will drop, rigtht now they are fine: 450 mg/l

snorvich · 03/14/2009, 04:31 AM

Better in the chemistry forum with all of the pros.

James983 · 03/14/2009, 05:01 AM

According to this article such a big bump would require a huge amount of supp. What type supp did you use?

http://reefkeeping.com/issues/2006-07/rhf/index.php

Randy Holmes-Farley · 03/14/2009, 07:50 AM

If it really is that high and you want to lower it, water changes are the only way. A lower magnesium salt like IO would be the quickest way.

What salt mix are you using now?

plancton · 03/14/2009, 01:21 PM

I used seachemÂ´s magnesium and a friend supplement he made, if it so hard to get it that high then probably the test is wrong since its already hard to test magnesium, but there is a relation to more mag=less coloration in some corals, that was evident.

IÂ´m just gonna do a water change right now see if it helps, although I did a water change 2 weeks ago the nitrates are 2.5ppm right now so it would do some good anyways.

davewbush · 03/14/2009, 02:47 PM

Do you know what the supplement your friend made was. This could be the problem for your corals.

James983 · 03/14/2009, 05:03 PM

Use the Elos Mg kit, much easier to read than Salifert

03/14/2009, 01:01 AM	#1
plancton Registered Member Join Date: Mar 2005 Location: Mexico Posts: 1,866	How do you lower magnesium? I added a mag supplement that increase Mag levels from 1600 to 1800ppm instantly, and some of the corals became pastel looking. It seems the Mag is to blame. How do I lower it?. Im also using seachem advantage calcium which mantains Mag, does that mean Mag will be 1800ppm forever as long as I add this supplement?, or that amount is to high and it should be consumed and be lower with time? Or what other method is there to lower the mag levels?

03/14/2009, 02:06 AM	#2
Harley-J Registered Member Join Date: Nov 2007 Location: Santa Clarita Posts: 1,068	Time is the essence..I would stop adding anything till the levels get back to normal. __________________ "OUCH...another Halide burn!!" Current Tank Info: sold..135g mixed reef, 40g sump, SS Dual & SS Single Ballasts, 3 LumenMax Elites, 20k Radiums, Ozotech 200mg Ozonizer, Milwaukee Orp Controller, EV180 w/Eheim 1260, Pinpoint PH, Litermeter3, Tunze Osmolator, 2xTunze 6100, Tunze 6060, JBJ 1/5 Chiller

03/14/2009, 02:26 AM	#3
plancton Registered Member Join Date: Mar 2005 Location: Mexico Posts: 1,866	Yes but if I stop adding advantage calcium, calcium level will drop, rigtht now they are fine: 450 mg/l __________________ Hansel, he´s so hot right now...

03/14/2009, 04:31 AM	#4
snorvich Team RC member Join Date: Aug 2005 Location: Outlander Posts: 40,953 Blog Entries: 46	Better in the chemistry forum with all of the pros. __________________ Warmest regards, ~Steve~

03/14/2009, 07:50 AM	#6
Randy Holmes-Farley Reef Chemist Join Date: Apr 2001 Location: Arlington, Massachusetts Posts: 86,233	If it really is that high and you want to lower it, water changes are the only way. A lower magnesium salt like IO would be the quickest way. What salt mix are you using now? __________________ Randy Holmes-Farley Current Tank Info: 120 mixed reef

03/14/2009, 05:01 AM	#5
James983 Registered Member Join Date: Mar 2006 Location: Long Island, NY Posts: 1,223	According to this article such a big bump would require a huge amount of supp. What type supp did you use? http://reefkeeping.com/issues/2006-07/rhf/index.php

03/14/2009, 01:21 PM	#7
plancton Registered Member Join Date: Mar 2005 Location: Mexico Posts: 1,866	I used seachemÂ´s magnesium and a friend supplement he made, if it so hard to get it that high then probably the test is wrong since its already hard to test magnesium, but there is a relation to more mag=less coloration in some corals, that was evident. IÂ´m just gonna do a water change right now see if it helps, although I did a water change 2 weeks ago the nitrates are 2.5ppm right now so it would do some good anyways. __________________ Hansel, he´s so hot right now...

03/14/2009, 02:47 PM	#8
davewbush ... Join Date: Feb 2009 Location: California Posts: 739	Do you know what the supplement your friend made was. This could be the problem for your corals.

03/14/2009, 05:03 PM	#9
James983 Registered Member Join Date: Mar 2006 Location: Long Island, NY Posts: 1,223	Use the Elos Mg kit, much easier to read than Salifert