Best way to lower magnesium?

[Jaws]

I was wondering if there is a better or easier way to lower magnesium other than doing a water change?

[Veng68]

I don't see any other option besides water change.

Cheers,
Aquaman

[StirCrazy]

Originally Posted by Jaws

I was wondering if there is a better or easier way to lower magnesium other than doing a water change?

how high is it? and how did it get that high?

Steve

[Farrmanchu]

I've heard that kalk dosing precipitates Mg, a bit at a time.

[Beverly]

Because of a faulty Salifert Mg test kit, I kept adding Mg over a period of a couple of months. With a new test kit, I realized I had Mg higher than 1500 ppm. It didn't do any harm. I just did regular weekly 15% water changes and let the tank slurp up the extra Mg.

[Jaws]

My Mg was up to about 1325 then I did a 40% water change last night. I dosed appropriately but somehow the Mg ended up being about 1470. I'm just worried because it was such a big jump and some of my corals seemed to have the tips burned off and even parts of their sides after I started dosing Mg a month or so ago.

[Beverly]

Jason,

How big is your tank? Did you add the Mg all at once (like dump it into the tank or sump), or did you add it bit by bit in a high flow area in the tank, or what?

I don't have a sump to add my additives to, so I calculate how much additive I need with the The Reef Chemistry Calculator, and add it 10 mls at a time with a baby medicine syringe into high flow areas in my 120g. Have never had any coral burning from adding buffer, Ca or Mg with this method.

[StirCrazy]

Originally Posted by Jaws

My Mg was up to about 1325 then I did a 40% water change last night. I dosed appropriately but somehow the Mg ended up being about 1470. I'm just worried because it was such a big jump and some of my corals seemed to have the tips burned off and even parts of their sides after I started dosing Mg a month or so ago.

don't worry about that, changing in now a few days later will be more of a strain on stuff as you are putting them through the change twice. and 1375 to 1470 isn't really a big jump for Mg.. I have done 400ppm jumps with no adverse effects.

the dosing how are you doing it though and why are you doing a regular dosing routine for Mg? I just check mine after every water change and adjust at that point as I find it stays constant after it is fixed.

Steve