FishWorks
Member
Hi Folks,
I am now learning about how to dose the Secondary Macros Calcium and Magnesium.
I've read its 3:1 ratio between Ca:Mg. Also, im supposed to dose 1dGH worth after my weekly water change.
So then its dosing 15ppm for Calcium and 5ppm for Magnesium.
I am supposed to dose in CaCO3 equivalents right?
My calculations for Calcium are as follows:
Calcium dose 15ppm = 15mg/L while Tank is 400L.
15mg/l x 400L = 6000mg = 6g of Calcium. I want to dose 6g of Ca.
I'm using CaSO4.2H20 which is 22.5% Calcium.
Since I need to dose 6g of Calcium, then want to dose 26.67g of CaSO4.2H2O. Thats about 1.6 Tbsp.
However, if I were to dose in pure ions, I would have to divide 15ppm of Calcium by 2.5.
15ppm Ca in CaCO3 equivalents will become 6ppm pure ions of Calcium.
And then I do the above calculations again.
Thanks
I am now learning about how to dose the Secondary Macros Calcium and Magnesium.
I've read its 3:1 ratio between Ca:Mg. Also, im supposed to dose 1dGH worth after my weekly water change.
So then its dosing 15ppm for Calcium and 5ppm for Magnesium.
I am supposed to dose in CaCO3 equivalents right?
My calculations for Calcium are as follows:
Calcium dose 15ppm = 15mg/L while Tank is 400L.
15mg/l x 400L = 6000mg = 6g of Calcium. I want to dose 6g of Ca.
I'm using CaSO4.2H20 which is 22.5% Calcium.
Since I need to dose 6g of Calcium, then want to dose 26.67g of CaSO4.2H2O. Thats about 1.6 Tbsp.
However, if I were to dose in pure ions, I would have to divide 15ppm of Calcium by 2.5.
15ppm Ca in CaCO3 equivalents will become 6ppm pure ions of Calcium.
And then I do the above calculations again.
Thanks