Canreef Aquatics Bulletin Board - Magnesium magically stable (and high)

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Quote:

Originally Posted by kien (Post 675467)

What I've found is that my Mg never depleted very fast at all and always hovered around 1300 to 1400 with regular water changes. I tested often at first because I bought myself a fancy schmancy 4 head doser to take care of dosing Alk, Calc and Mag but the doser never got set up to dose Mg since my mag never depleted enough to warrant dosing. I do weekly water changes of 10% with the occasional missed week here and there. Or the occassional missed month like in December :lol:

LOL, sounds like my December :wink:

My mg does deplete but it does it fairly slowly. I find trying to keep it at 1350 for awhile there was difficult and then suddenly it shot up to 1500 for whatever reason. I do still have a feeling it will slowly decrease to about 1250 or something but it seems to hang around there and doesn't go lower. Not sure how closely its related to Alk like Ca is but my Alk levels are always in the toilet (5-6.4) and I never seem to be able to stay on target, I suppose because I have so many SPS in the tank.

Quote:

Originally Posted by christyf5 (Post 675469)

my Alk levels are always in the toilet (5-6.4) and I never seem to be able to stay on target, I suppose because I have so many SPS in the tank.

I don't think your toilet's Alk level really affects your tank.. but I'm no expert on that matter. I will have to test mine to see what my toilet's alk level is at as now I'm curious..

Quote:

Originally Posted by kien (Post 675471)

I don't think your toilet's Alk level really affects your tank.. but I'm no expert on that matter. I will have to test mine to see what my toilet's alk level is at as now I'm curious..

well if it isn't etching the porcelain I wouldn't worry about it. I don't.

Tested my Mg last night and got 1450 with Elos. Tank has been running for a little over 1 1/2 months with no supplemented Mg, all IO salt.

Crazy seems like a common problem. I know when mag is low it can be tough to balance the other two but it seems to have no effect being at 1500 (normally I aimed for 1400). I can't bring it down anyways but I am going to test my next wc out of curiosity and I'll post back.

Maybe Elos sucks consistently too!

Tested tonight on a fresh bucket of IO, didn't take the time to roll it or whatever i was supposed to do to mix it.

Mg: 840 ppm
Alk: 10.4 dkH
Ca: 320 ppm

Guess I'm continuing to dose magnesium :razz:

Just did my wc today and forgot to test oops! That's crazy low christy and it takes a lot of supplements to raise mag that much.

I using RC ang my mag stays above 1400. I do have to dose calc and alk daily.