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GH=?just help

2101 Views 20 Replies 5 Participants Last post by  dwalstad
machine water
GH 2
Ca=10 Mg=2,5
KH 2
30 liter water tank
I have to add GH=?
water change 3 times a week
every time change the water
I have to add Ca=?Mg=?
please help
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Calcium is vital and required in greater quantities than magnesium. The GH should reflect calcium as well as magnesium.
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