View Full Version : MG lvl target


SnowManSnow
10-29-2009, 3:57 PM
Ok, so I don't test for Mg NEAR as much as I should. I've been having trouble keeping alk up.. even dosing kalk so I think to myself .... Self, perhaps my Mg is low and inhibiting the saturation point.

so ive forgotten.

what is my target range Mg.. isn't it like 1300 or so?

B

Acroholic
10-29-2009, 4:01 PM
Ok, so I don't test for Mg NEAR as much as I should. I've been having trouble keeping alk up.. even dosing kalk so I think to myself .... Self, perhaps my Mg is low and inhibiting the saturation point.

so ive forgotten.

what is my target range Mg.. isn't it like 1300 or so?

B

Yes

johnr2604
10-29-2009, 4:02 PM
Ok, so I don't test for Mg NEAR as much as I should. I've been having trouble keeping alk up.. even dosing kalk so I think to myself .... Self, perhaps my Mg is low and inhibiting the saturation point.

so ive forgotten.

what is my target range Mg.. isn't it like 1300 or so?

BI shoot for around 1350-1400

sra_chipmunk
10-30-2009, 6:34 AM
Someone told me that Mg should be 3x what CA is. If CA is 450, then you should shoot for your Mg to be 1350.

JennM
10-30-2009, 12:53 PM
Agreed. Some folks have intentionally raised it to 1800 to help control Bryopsis, but that's kind of an "off label" use ;)

1350 is what we aim for.

Jenn

Acroholic
10-30-2009, 12:56 PM
I usually just try to keep it in range, which I got from the Randy Holmes Farley chemistry series on Reef Central, which is 1275-1350, I think.

Magnesium levels are about the only thing I ever need to adjust in my reef tanks, come to think of it. A properly tweaked calcium reactor is a good thing.
Dave