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DIY Mg

Discussion in 'Dosing' started by Rmcaum, Feb 13, 2016.

  1. Rmcaum

    Rmcaum Director Staff Member

    Anyone ever made Mg supplement with Mag Flake and Epsom Salt?
     
  2. parisreefer

    parisreefer Club Member

    I use Epsom salts. I'm sure you have researched formula. My suggestion for you though is to drip it in diluted. Keep up with water changes to minimize sulfate build up. Don't use it for small tanks to hard to control DIY formulas.
     
    kerstin likes this.
  3. Rmcaum

    Rmcaum Director Staff Member

    Thanks! I did a little research. Two things about this, I was inaccurately testing my Mg, by about 450ppm low. That Red Sea test kit has at least three end points and is different from the calcium test. I had been testing calcium consistently and hadn't tested my Mg in months and months, it had always been elevated. When I broke out the test kit it tested around 1100. Used a liter of Mg supplement I had in the house to raise it about 50 ppm. I didn't want to spend a hundred bucks on Mg to get it up to par. I started to doubt myself so I looked up a Red Sea YouTube video, and lo and behold, I had forgotten how to do it. Now my Mg is accurately reading about 1550. Oh well. No harm no foul I guess. Glad I figured it out before I added another couple of pounds of Mg. I did buy Red Sea powdered Mg to make new supplement for when I need it again, probably this time next year...
     
  4. Rmcaum

    Rmcaum Director Staff Member

    I did read the sulfate issue is kind of negligible considering the levels in sea water. Once I figured out what I was doing wrong with the test, I wouldn't be concerned at all by adding the small amounts of Epsom that would keep my tank on track.
     
  5. parisreefer

    parisreefer Club Member

    I have a rule. Always test. My regular w/c maintenance has been sufficient for sulfate levels. I use diy lime water as well. Occasionally seems like my corals gets extra hungry or the moon changes and I have to supplement with a 2 part.
     
  6. Jilnifer

    Jilnifer President Staff Member

    I have hanna tests but everyone of them is different. I always read the directions.
     
  7. Rmcaum

    Rmcaum Director Staff Member

    Ha, I will bring you the Red Sea kit, let you read the directions, then I will reread them to you and then let you do the test. I think the accuracy is very repeatable, it is just a matter of which end point you want to repeat. I have the Hanna alk and phosphate and enjoy them. I didn't even know they had a mag test. In a perfect world I would only test mag about every three months.
     
  8. Rmcaum

    Rmcaum Director Staff Member

    And for that matter, as long as it is between 1200 and 1500 I don't really care how accurate it is.
     
  9. Jilnifer

    Jilnifer President Staff Member

    Bob, that made no sense! What?
     
  10. Rmcaum

    Rmcaum Director Staff Member

    Which part? What's new...
     

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