Magnesium Dosing?

TinkL

Community Member
View Badges
Joined
Oct 25, 2022
Messages
81
Reaction score
29
Location
Tucson
Rating - 0%
0   0   0
Hello! I just wanted to ask if anyone has any recommendations for dosing mag. For how much you need to dose a lot of the options I've found are pretty expensive and you need to use a TON of it when dosing, are there better options or is that just how it is for mag?
 

Formulator

Valuable Member
View Badges
Joined
Apr 14, 2024
Messages
2,481
Reaction score
2,585
Location
Saint Louis, MO, USA
Rating - 0%
0   0   0
Magnesium salts have lower solubility than other things we dose, and usually we are making larger corrections on top of this, so it is often a higher volume dose than we are used to. No way around it really. BRS general magnesium adjust is my preference. It has a mixture of magnesium sulfate and magnesium chloride so you don’t spike sulfates with larger doses.
 

Randy Holmes-Farley

Reef Chemist
View Badges
Joined
Sep 5, 2014
Messages
72,100
Reaction score
69,741
Location
Massachusetts, United States
Rating - 0%
0   0   0
Hello! I just wanted to ask if anyone has any recommendations for dosing mag. For how much you need to dose a lot of the options I've found are pretty expensive and you need to use a TON of it when dosing, are there better options or is that just how it is for mag?

If you need to make a large correction, it takes a ton because the corrections are large.

How are you maintaining calcium and alk? That method can help determine the best way to dose magnesium.

You may find this useful:

 
OP
OP
T

TinkL

Community Member
View Badges
Joined
Oct 25, 2022
Messages
81
Reaction score
29
Location
Tucson
Rating - 0%
0   0   0
If you need to make a large correction, it takes a ton because the corrections are large.

How are you maintaining calcium and alk? That method can help determine the best way to dose magnesium.

You may find this useful:

I use the 2 part seachem reef fusion for cal/alk
 

Randy Holmes-Farley

Reef Chemist
View Badges
Joined
Sep 5, 2014
Messages
72,100
Reaction score
69,741
Location
Massachusetts, United States
Rating - 0%
0   0   0

zer0salinity

New Member
View Badges
Joined
May 26, 2017
Messages
20
Reaction score
12
Location
Salida,CA
Rating - 0%
0   0   0
I use same.
For MG I use Red Sea at a daily rate of 1/5th of CA dose.
I was using the Sea Chem MG supplement (Ions) but it just got to costly.
Where did you get "1/5" of Ca dose from? Is it from a chemical reaction equation?
 

Uncle99

10K Club member
View Badges
Joined
Jul 22, 2018
Messages
10,506
Reaction score
15,974
Location
Province of Ontario
Rating - 0%
0   0   0
It’s approximate. I need to dose 5mls per day MG to maintain 1350ppm. I need to dose 25ml per day CA to maintain 450ppm.

So in my case, MG is being dosed in an amount, 5 times less than CA.

Would depend on the mix, but won’t be that far out.
 

HAVE YOU EVER KEPT A RARE/UNCOMMON FISH, CORAL, OR INVERT? SHOW IT OFF IN THE THREAD!

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%
Back
Top