Adding magnesium powder by weight to filter sock?

[t5Nitro]

I haven't come across a thread on this yet, but can you add magnesium powder to a filter sock on the drain and let it dissolve into the water that way or is it still recommended to make a stock solution?

It looks like I will need about 1 kg of BRS mag sulfate to raise mine back to 1400 from 1100. Can I add 100 grams a day to a sock x 10 days?

 

[Randy Holmes-Farley Verified Community Expert]

That will probably work, but if you end up with something that won’t dissolve, then it was a bad idea. lol

 

[t5Nitro]

So you're saying there's a chance! lol -- I just didn't want the added volume from mixing it in a gallon of water.

 

[Randy Holmes-Farley Verified Community Expert]

My bigger concern is that the 1100 ppm may be a false reading. Magnesium tests are very prone to error.

Try it on some new salt water.

 

[SteveMM62Reef]

The only way I could get consistent magnesium test results with the Red Sea Kit, was by using a Magnetic Stirrer.