The Planted Tank Forum - View Single Post - Dosing Calcium Chloride and Magnesium Sulfate

Hypancistrus · 06-01-2005, 08:48 AM

That's WAY WAY too much magnesium. Most people either do a ratio of 3:1 calcium:magnesium or 4:1 calcium:magnesium.

The numbers for a 4:1 ratio are:

For 1 dGH per gallon - 0.07939 grams CaCl2*2H2O, and 0.03327 grams MgSO4*7H2O (epsom salt).

So, to raise 50 gallons by 5 dGH, you want 19.85 grams of CaCl2*2H2O and 8.32 grams of MgSO4*7H2O.

06-01-2005, 08:48 AM	#7 (permalink)
Hypancistrus Wannabe Guru (View User Tanks) PTrader: (0/0%) Join Date: Oct 2004 Location: West Michigan Posts: 1,033	That's WAY WAY too much magnesium. Most people either do a ratio of 3:1 calcium:magnesium or 4:1 calcium:magnesium. The numbers for a 4:1 ratio are: For 1 dGH per gallon - 0.07939 grams CaCl22H2O, and 0.03327 grams MgSO47H2O (epsom salt). So, to raise 50 gallons by 5 dGH, you want 19.85 grams of CaCl22H2O and 8.32 grams of MgSO4**7H2O.