RO Mineral Suppliments

jondamon

jondamon

Well-Known Member
SnapsProvolone said:
Calcium
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DEFINATELY calcium.

Possibly some magnesium depending upon the % contained in your nutes. 2%-4% Mg content in your nutes and you shouldn't have to worry about additional Mg.

All micros should be found in enough supply within your nute regime.



J
 
Dutchy018

Dutchy018

Member
jondamon said:
DEFINATELY calcium.

Possibly some magnesium depending upon the % contained in your nutes. 2%-4% Mg content in your nutes and you shouldn't have to worry about additional Mg.

All micros should be found in enough supply within your nute regime.



J
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I usually use calmag ferts when needed in addition to foxfarm soil nutes as a weekly regemin so yeah I don't know if magnesium is nessasery here.. I plan on using the RO res for drinking and cooking water as well so this seems like a good choice, not sure if it has the desired level of calcium though?

iSpring FA15 10-Inch 2-layer Alkaline and Minerals Filter Replacement Cartridge-Calcite Alkaline
 
Mr John

Mr John

Active Member
I also use RO in my automatic coffee brewer, last so much longer as there is no scale build up to damage the pump. Flavor is better too. Oh and I supplement with calmag for my hydro garden.
 
MOON SHINER

MOON SHINER

Well-Known Member
I use RO with flood and drain coco, about 2-5 ml per gallon of cal-mag plus a pinch (latterly a pinch with my fingers) of Epsom salt works as a maintenance feed, cal-mag gets adjusted during peak flower as needed.
 
Aeroknow

Aeroknow

Well-Known Member
I also add calmag+ @ 2.5ml/gal when starting with RO water. Whether I'm in coco, or any other setup I'm rockin. I also do this with any nutrient I'm using(and I'm always using different nutes)
I never experience Ca deficiencies(even in coco) anymore. And I never, ever, end up with the pleasure of dealing with those Mg hogs for strains anymore! :D
 
Dutchy018

Dutchy018

Member
Aeroknow said:
I also add calmag+ @ 2.5ml/gal when starting with RO water. Whether I'm in coco, or any other setup I'm rockin. I also do this with any nutrient I'm using(and I'm always using different nutes)
I never experience Ca deficiencies(even in coco) anymore. And I never, ever, end up with the pleasure of dealing with those Mg hogs for strains anymore! :D
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Hey Aeroknown, do you use a suppliment filter with your RO system, then add calmag+? I'm wondering when I should start, I usually try to hold off until a week or so after veg, but with RO water maybe I should start sooner rather than later, maybe with 1/4 strength? Also wondering if I will even need it if I add a Calcite Alkaline filter to the mix
 
Aeroknow

Aeroknow

Well-Known Member
Dutchy018 said:
Hey Aeroknown, do you use a suppliment filter with your RO system, then add calmag+? I'm wondering when I should start, I usually try to hold off until a week or so after veg, but with RO water maybe I should start sooner rather than later, maybe with 1/4 strength? Also wondering if I will even need it if I add a Calcite Alkaline filter to the mix
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I'm not even sure what those filters are, that you mentioned. I've never looked into them;-) sorry.

If I have to use an RO setup these days, it is just going to be a 3 stage. None of us(everyone I know) use a DI filter anylonger.
But, I usually start with the
Calmag, a couple weeks into veg, when I really start to up the nutes. Like I hinted to, in my earlier post, I so very rarely experience deficiencies any longer these days, by doing this.

My tap water is only 50ppm(.7) at my house. I treat it as I would with RO, and it works killer.
 
D

Dirty Harry

Well-Known Member
What is the PPM of your RO water? (sorry, not an EC type of person)
My tap was 650PPM in and 30PPM coming out. I used Calmag for awhile (had to), but it was another cost as I have to have it shipped and pay shipping. I started adding tap water into the RO res until the PPM got to about 200PPM before anything was added. Then I did not need to use supplements. On topping up the res, I would top with tap every third time, but you may need to play around with that. My res was only 25 gallons so the topping up was not a lot and I did not dump and refill.
 
Aeroknow

Aeroknow

Well-Known Member
Dirty Harry said:
What is the PPM of your RO water? (sorry, not an EC type of person)
My tap was 650PPM in and 30PPM coming out. I used Calmag for awhile (had to), but it was another cost as I have to have it shipped and pay shipping. I started adding tap water into the RO res until the PPM got to about 200PPM before anything was added. Then I did not need to use supplements. On topping up the res, I would top with tap every third time, but you may need to play around with that. My res was only 25 gallons so the topping up was not a lot and I did not dump and refill.
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Without a DI filter, ppm is usually around 10-15 ppm(again, @ .7)
If cutting the RO water with your tap water works for you, I say sweeet:bigjoint: i've done that before, and your rite, no calmag needed(when I did that)
 
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