magnesium

[figdish]

so if i wait til tomorrow morning a take another reading may be more acurate?

[Delphinus]

Do you mean for the Mg or the PO4? If PO4, sure, probably; if Mg, it probably doesn't matter morning or night, but if you get a reading like 2400 again, maybe do a second test right away.

Where the SG's the same between the 950 and 2400 readings on the magnesium?

[Myka]

Tony, you keep magnesium at 1500-1600 ppm?

I agree with Tony, sounds like a goofed up testing. It won't swing from 2400 to 900.

[Delphinus]

Sorta.. realistically I'm happy with anything above 1400.

[Myka]

I've never kept mine over 1400 ppm. What benefit do you see? You use Mag chloride or a mix with Mag sulphate?

[Delphinus]

I use a mix. Anemones looks better with the Mg at those levels (don't ask me why they care, but they do - I can always tell when my Mg has gotten too low by looking at the anemones), plus, although it could be hearsay I keep hearing that higher Mg levels help keep hair algae and bryopsis at bay.

[figdish]

ok u guys have got my head spinning, i only just started this most favorite hobby I have ever had in my life and already I am confused. I just need to know what to do to make my water good and btw I am building a sump with a refugium. newyorksteelo is my hero!