Can I mix Aquaforest Magnesium with just saltwater, not RODI

[Brad Coughlan]

Hi there,
I want to add more magnesium with aquaforest, but if I do it using RODI it raises extremely slowly and my corals consume it quick

Can I mix it with just saltwater to avoid lowering salinity like when I use rodi?

Thanks

 

[danimal1211]

What test kit are you using to determine your usage? What are your alk and calcium consumption?

 

[Brad Coughlan]

What test kit are you using to determine your usage? What are your alk and calcium consumption?

Salifert for testing

Its at about 1300 currently, I am unsure on consumption but I am not dosing right now as Im trying to get my alk down

I'd like to get it to 1400 since I have a fair amount of LPS, which from the info I have seen enjoy slighly elevated magnesium

 

[danimal1211]

I highly suggest reading this thread

Just say NO to magnesium testing: RMM is born

OK, this thread has been many years in the making, and I'm posting it here since folks in the chem forum are probably already tired of all the threads relating to problematic magnesium testing. I'm going to propose a method, let's call it the Randy Magnesium Method, or RMM for short. All good...

www.reef2reef.com

 

[Brad Coughlan]

I highly suggest reading this thread

Just say NO to magnesium testing: RMM is born

OK, this thread has been many years in the making, and I'm posting it here since folks in the chem forum are probably already tired of all the threads relating to problematic magnesium testing. I'm going to propose a method, let's call it the Randy Magnesium Method, or RMM for short. All good...

www.reef2reef.com

Thanks

I actually bought the test kit just before Randy sent me that the other day haha, I am just using it since I already have it

 

[danimal1211]

The point being that you stated your corals consume it quickly and that likely isn’t so. 1300 is a great number no matter what corals you keep.

 

[Randy Holmes-Farley]

If you do want to add magnesium, it can be formulated at quite a high concentration in RO/DI, so the amount of water being used should not be a limitation.

I would not add it to seawater. I worry that magnesium carbonate and/or hydroxide will precipitate if you add much.

 

[Brad Coughlan]

If you do want to add magnesium, it can be formulated at quite a high concentration in RO/DI, so the amount of water being used should not be a limitation.

I would not add it to seawater. I worry that magnesium carbonate and/or hydroxide will precipitate if you add much.

Right ok, thanks, I'll just make a a higher concentrated solution