Magnesium

Strongreefer85

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I don’t want to make another thread but can’t seem to find one that suits me.

So I way way over dosed alk. Like to a level of 15dkh over dosed. So I did some water changes. Somewhere along the line I got precipitate. I have waited the 4 days just to make sure it cleared up and cleaned up the glass and all my equipment. I tested my mag and it was at 710. I have the BRS pharma 2 part jug mix that comes with the 2 part mag. After doing a bunch of research here everything I’ve read says to try and get mag up first and it’s important. Over all after using BRS calculator it calls for 6234 ml. I have added so far over 3 days 3740 ml. I also tested my alk and I’m sitting at 5.2. So I dosed 340ml of alk today. My problem is I cannot get mg to register it is going up whatsoever. At most I can make 45 gallons of clean water and I use Red Sea pro salt. Can someone please give me some insite.
 

Miami Reef

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How many gallons is your tank?
 

Miami Reef

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The magnesium test kit is inaccurate. It’s actually common-practice to not test for magnesium at all. Many reefers report similar experiences to yours.

If 15dKH really precipitated, it could only deplete magnesium by less than 11ppm.

Magnesium cannot give large jumps. It moves EXTREMELY slowly.

Throw out the kit, and dose a balanced alk + ca + mg system.

 

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