Best Magnesium supplement for large tanks...

[nightOwl]

I am planning on upgrading soon so I want to know what people are using on their tanks. My 180 ran for a while before crashing after neglect so now its time to move on to bigger and better things. I have been trying to get my magnesium back up a good level and for some reason I am stuck around 1250 ppm with only less than 15 corals frags. Maybe its the supplement I am using but I am curious to what people are using. If you could answer the following I would greatly appreciate it.

What are you using to supplement Magnesium?
How big is your tank?
How often are you dosing?
SPS dominate or not?​

Thanks in advance

 

[worm5406]

I am supp Mg.

I am using the Kent 1g bottle.

375g

I test then I dose. I was keeping it at 1400 for a while to knock some algae. Now I am putting it about 800.

 

[ca1ore]

Suggest spending some time 'lurking' on the reef chemistry forum. I forget the exact math, but seawater holds a lot of magnesium, so getting levels up can be tough through supplements. I use Randy's improved 2-part recipe and add the third component as directed upon draining down the dual gallon alk/calcium.

 

[Newbie Aquarist]

What are you using to supplement magnesium?

ME Corals Magnesium

How big is your tank?

478 gallon display tank and 109 gallon frag tank.

How often are you dosing?

20 mls 24 times a day

SPS dominant or not?

SPS dominant.

 

[BryanW]

SPS tank only with a about a dozen rose anemone's (started with one)...600 gal total...I run large calcium reactor the goes into secondary chamber with mag only...for the last year I have not had to add anything to tank and all parameters of water quality have been perfect. I simply add more media about every 3 months to chamber.

 

[downbeach]

I am planning on upgrading soon so I want to know what people are using on their tanks. My 180 ran for a while before crashing after neglect so now its time to move on to bigger and better things. I have been trying to get my magnesium back up a good level and for some reason I am stuck around 1250 ppm with only less than 15 corals frags. Maybe its the supplement I am using but I am curious to what people are using. If you could answer the following I would greatly appreciate it.

<b>

What are you using to supplement Magnesium?

RC Salt Mix

How big is your tank?

180 + 40 gal. sump

How often are you dosing?

Never - bi monthly WC's keeps it at 1350

SPS dominate or not?

Yes
​

</b>

Thanks in advance

 

[azjohnny]

I am supp Mg.

I am using the Kent 1g bottle.

375g

I test then I dose. I was keeping it at 1400 for a while to knock some algae. Now I am putting it about 800.

I use the Kent Marine Tech M. I also tried to use it to get rid of green algae, It was suggested to raise it to 1600-1700 which I did and didn't get rid of the algae, I now keep it at 1350-1400.

I have heard it isn't so much the Mag that helps with the algae but another ingredient in Tech M

I used API Algae Fix to finally get rid of the algae and hasn't been back since

 

[nightOwl]

Thanks everyone this information will help me find the right supplement and do some more research.