low mag

red02 · #1 10/16/2007, 08:56 PM

i have a hard time keeping my mag up any idea why

bertoni · #2 10/16/2007, 09:34 PM

How is magnesium being measured, and what is the rate at which it's dropping? What's being dosed?

paulhines · #3 10/17/2007, 06:22 AM

Is it possible to have percipitated a lot of CaCo3, possibly in the gravel, while having a low Mg level. Then as you start adding magnesium back to the tank it's reacting in such a way to remove large amounts from solution.

capn_hylinur · #4 10/17/2007, 01:02 PM

Quote:

Originally posted by bertoni
How is magnesium being measured, and what is the rate at which it's dropping? What's being dosed?

calcium and alkalinity levels would be helpful also

Wryknow · #5 10/17/2007, 02:13 PM

Are you using SeaChem reef salts?

Billybeau1 · #6 10/18/2007, 01:22 AM

Quote:

Originally posted by Wryknow
Are you using SeaChem reef salts?

Seachem's Reef Salt is actually pretty good on magnesium. Not sure why you asked that

Wryknow · #7 10/18/2007, 11:39 AM

I had a lot of problems with my magnesium levels when I used to use Seachem reef. They may have fixed with the formula since then but I had two big buckets in a row that were testing in the 900 - 1000 range pretty consistently. (It's always possible that they were part of the same bad batch though I suppose.)

Billybeau1 · #8 10/18/2007, 01:42 PM

Yes they are better now. I'm testing between 1350 and 1400 ppm magnesium at 1.0264 (35ppt)

You may be mixing lean.