Liquid Cal mags are not just powdered cal/mg. Here are two examples.
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Botanicare Cal Mag Plus (2-0-0) Mg1.2% Ca3.2% Fe.1%
1.0208 g/mL
@10mL/Gal
N 54
P 0
K 0
Mg 32
Ca 86
Fe 2.7
Derived from: Calcium Nitrate, Magnesium Nitrate, Iron EDTA.
Technaflora MagiCal (2-0-0) Mg1.25% Ca3.25% Fe.11%
142g/125mL = 1.136g/mL
@10mL/Gal
N 60
P 0
K 0
Mg 38
Ca 98
Fe 3.3
Cl NOT LISTED
Derived from: Calcium Nitrate, Calcium Chloride, Magnesium Nitrate, Iron DTPA, Iron EDTA.
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FWIW a dry form of Mg is epsom salt, its is normally MgSO4·7H2O. Note the Sulfur too.
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actually i wasnt correcting, i was asking...
and i was just reffering that the dry cal/mg i seen was pretty much the same as liquid ones..