Cal and mag supplement that is not acidic

Is there a cal mag that b is not so acidic? I am using GO calmag plus and it has humic acid and i have to use a lot if ph up when i use it.

All CAL/MAG supplements are calcium nitrate and magnesium nitrate. The conjugate acid/base pairs of Calcium hydroxide/nitric acid and Magnesium hydroxide/nitric acid both form a slightly acidic solution.

Use Gypsum and Epsom Salt.

Not sure why I didn't think of it then, but Calcium Hydroxide, also known as slaked lime, hydrated lime, or caustic soda will form a very basic solution. It is not that soluble in water, but it creates a very basic solution. 0.075g/L will create a solution with a pH of 11.3 and it will be a solution that has 40ppm of Ca. Peak solubility in water is 1.73g/L and will create a solution that has a pH of 12.7, it will be a solution that has 93.5ppm of Ca.

Basically, use it as a pH UP solution to go along with whatever calmag supplement you want to use.

How much are you using? Even with my RO at 5ppm I've never seen a need to use more than 2ml per gallon.

intenseneal said:

Is there a cal mag that b is not so acidic? I am using GO calmag plus and it has humic acid and i have to use a lot if ph up when i use it.

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I use gypsum and epsom salt. The dosages I think are reasonable are here.

Thanks

jarvild said:

How much are you using? Even with my RO at 5ppm I've never seen a need to use more than 2ml per gallon.

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5ml per gallon, light feeding dose. Takes 15ppm water to 210ppm. I switched to Botanicare for now to see how that works...

If you use gypsum (calcium sulfate) to provide calcium in hydro, you will have too high a level of sulfates. Over 60ppm of S is not necessary.

intenseneal said:

5ml per gallon, light feeding dose. Takes 15ppm water to 210ppm. I switched to Botanicare for now to see how that works...

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My RO water starts at 5ppm. To that I add 30 ppm of potassium silicate then 50 ppms of cal, 20 ppm of mag and 10ppm of Iron.