How do you dose your Mg?

[porpoiseaquatics]

I test weekly using a Red Sea Pro test kit. I dose via dosing pump set for 5 ml twice a day using BRS mix. I supplement one dose a week with Kent TechM just for good measure. My Mg stays around 1400 and I don't get any algae.

 

[curtismaximus]

porpoiseaquatics;938810 wrote: I test weekly using a Red Sea Pro test kit. I dose via dosing pump set for 5 ml twice a day using BRS mix. I supplement one dose a week with Kent TechM just for good measure. My Mg stays around 1400 and I don't get any algae.

Hey thanks for the info! That's the exactly what I am looking for. I am curious about the additional Kent Tech?

 

[kirkwood]

the liquids are very expensive if you have a large tank... I bought a large bucket of Seachem's Mag powder for 30ish...

As others said - a quality salt and consistent ~10% weekly water changes should maintain MAG around 1300. I think a safe bet on MAG depletion is about 5ppm/day so it moves down very slowly so when you increase it you should also do it slowly.

 

[curtismaximus]

Kirkwood;938926 wrote: the liquids are very expensive if you have a large tank... I bought a large bucket of Seachem's Mag powder for 30ish...

As others said - a quality salt and consistent ~10% weekly water changes should maintain MAG around 1300. I think a safe bet on MAG depletion is about 5ppm/day so it moves down very slowly so when you increase it you should also do it slowly.

I am doing my water changes I am just worried because I use Reef Crystals. I'm not sure how the Mg levels compare with the more expensive salts.

 

[itskris]

Curtismaximus;938743 wrote: Care to elaborate?

In my 90 gallon I dose 3 caps of Magnesium, Calcium, and Alkalinity. 1 cap of sustain iodine. And 2 caps of strontium. I am going to start trace elements as soon as Jack Kent sends them over. I do this every Monday and Thursday.

Looking to set up an auto doser for all of this if anyone has experience and wants to point me in the right direction.


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[curtismaximus]

itskris;939057 wrote: In my 90 gallon I dose 3 caps of Magnesium, Calcium, and Alkalinity. 1 cap of sustain iodine. And 2 caps of strontium. I am going to start trace elements as soon as Jack Kent sends them over. I do this every Monday and Thursday.

Looking to set up an auto doser for all of this if anyone has experience and wants to point me in the right direction.


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Hey thanks for the info. Your dosing schedule seems very labor intensive.

 

[itskris]

It's not bad. Takes a couple minutes and gives me a reason to open the cabinet under neither and check on things.


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[kirkwood]

Curtismaximus;938981 wrote: I am doing my water changes I am just worried because I use Reef Crystals. I'm not sure how the Mg levels compare with the more expensive salts.

RC is a quality salt. If you are mixing out a 1.026 then I believe the MAG should be aroun 1350.

 

[bluespot]

Curtismaximus;938752 wrote: Yeah I think I read the Mg is a byproduct of low end Kalkwasser. I believe with certain Kalk you don't have to dose Mg at all. I guess I'll find out with the test kit.

Brightwell aquatics makes a dry product called Kalk+2 that has kalk, mg, and strontium mixed together. I sometimes add a little to my top off. Definitely get a good quality test kit before adding anything. I usually go with a dry powdered form when needed after testing.