Quote:
Originally Posted by martym
Io
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What I figured.
IO works very good for fish only.
I use it for my reef, and so do many others. For myself I found it very hard to keep my alk and calcium in-line, untill I started adding magnesium to the mix.
FWIW it takes a lot of magnesium to get it to where you want it.
Many people follow my home made recipe:
Just do the math to get it to follow your water change shed:
-45 gallon of new water (RO, or DI or RO/DI)
-add 1.5 cups of magnesium
-add 6 teaspoons of calcium
-after the cal and mag are mixxed add the salt.
This will yield app 1380 mag, 420 cal, and 10 dkh alk
I always recommend testing, but FWIW I have not tested magnesium for over 3 years, and things are still going great for my tank, no precip on my pumps, or anywhere else!