magnesium uptake in sps tank

[H2o2]

jl also sells zeovit mag roc that i put in my cal. reactor at 10% like recomended and it sure helps me

[Willito]

IME, once your tank is stable and assuming all 3 levels are near NSW, magnesium will deplete at a rate of 1:2 in reference to CA and ALK. In my tank, the magnesium is the most stable element of the three, it's solid. As for the Zeo Mag, I think this product is junk unless you have a CA reactor and willing to measure it constantly. Better off using mag in bulk chem for accuracy and economically.

[Lampshade]

ARM's new mix is "high magnesium" but still not perfect. I dose extra on water changes with Randy's DIY recipie. Apperently Dolomite(Dolcimite?) in the calc reactor works, people have been using that for a long time.

Check salt mixes too, i use IO and it's low. Just bringing it up to 1300 at water changes keeps my tank balanced at about 1200-1250.