Raise Mg

[Ian Baxter]

My Mg has been consistently testing low. Do I need to raise it or let it be? Corals seem okay, but only had them for a few weeks. Some softies and LPS.
I use Sailfert for Ca, dKH, and Mg
API for pH and NO3

 

[LAReefer4Life]

My Mg has been consistently testing low. Do I need to raise it or let it be? Corals seem okay, but only had them for a few weeks. Some softies and LPS.
I use Sailfert for Ca, dKH, and Mg
API for pH and NO3

It's best to keep levels consistent more than anything. Chasing numbers and fluctuating parameters is more detrimental. If you want to increase the Mg level I'd halt all supplement additives and test the same time each day for 7 days and identify your daily consumption rate and you then you can better understand how much should per dosed to hit your goal.

 

[Randy Holmes-Farley]

I would raise the magnesium to a more natural level, around 1300 ppm. The exact number isn't critical.

These have more:

Do-It-Yourself Magnesium Supplements for the Reef Aquarium by Randy Holmes-Farley - Reefkeeping.com

Aquarium Chemistry: Magnesium In Reef Aquaria

This article details the nature of magnesium in seawater, how it is added, measured, and removed from marine aquaria, and how it impacts the maintenance of calcium and alkalinity.

reefs.com

 

[NanJ]

Our target for magnesium is about 1350 - 1400. We use AquaVitro IONs magnesium supplement which is made by Seachem and is a liquid product. According to Seachem (I can neither confirm nor dispute) this product provides magnesium in a form that is biologically available and does not contribute ammonia which some mag supplements apparently do. Seachem also makes a powdered mag supplement. We just choose to use the IONs form for ease of use. The AquaVitro brand is only sold in retail stores.

 

[Randy Holmes-Farley]

Our target for magnesium is about 1350 - 1400. We use AquaVitro IONs magnesium supplement which is made by Seachem and is a liquid product. According to Seachem (I can neither confirm nor dispute) this product provides magnesium in a form that is biologically available and does not contribute ammonia which some mag supplements apparently do. Seachem also makes a powdered mag supplement. We just choose to use the IONs form for ease of use. The AquaVitro brand is only sold in retail stores.

FWIW, there is no magnesium supplement sold to hobbyists that is any more or less biologically available, as long as it actually dissolves. That statement by Seachem is one of those things companies write that is correct, but tends to be misleading, implying someone else's product is different without actually saying so.

 

[Ian Baxter]

It's best to keep levels consistent more than anything. Chasing numbers and fluctuating parameters is more detrimental. If you want to increase the Mg level I'd halt all supplement additives and test the same time each day for 7 days and identify your daily consumption rate and you then you can better understand how much should per dosed to hit your goal.

I’m not dosing anything, so testing everyday sounds like a good idea. I give that a try.

 

[Ian Baxter]

Our target for magnesium is about 1350 - 1400. We use AquaVitro IONs magnesium supplement which is made by Seachem and is a liquid product. According to Seachem (I can neither confirm nor dispute) this product provides magnesium in a form that is biologically available and does not contribute ammonia which some mag supplements apparently do. Seachem also makes a powdered mag supplement. We just choose to use the IONs form for ease of use. The AquaVitro brand is only sold in retail stores.

Thanks! I’ll check this out.