If you use RO or distilled water you NEED CalMag Plus

[khyberkitsune]

If U use RO and U have hard water really dont need CalMag. All u gotta do is mix them 1/2 and 1/2. Half ro/tap. U'll save money on ur RO filter and not buying CalMag.
My .02
L8
MJ

Most hard water comes from an excess of calcium and not magnesium, though. The imbalance would cause a lockout of magnesium and you'd have sickly plants pretty quickly. Tried it, didn't work. Back to cal-mag.

I have hard water and even without RO I add cal-mag to bring the levels closer to balance.

[MimbresValley]

Hi McToker,

Sorry no one answered your question right away.

Yes you should continue the use of cal/mag during flush, it will help the plant use up any nutes left in the soil, but also any nutes left in its' cells. If your using the cal/mag as directed the amount is so small it will not effect taste. It's just as if you where using tap or decent well water there is just a trace of micro-nutrients in it.

Hey mac, could you explain this part a little more in depth:jointsmile:

[oldmac]

The question was whether it was OK to use RO water /cal-mag to do a flush when finishing. It is accepted that cal-mag water allows for nutrients to be more available for the plants uptake. (that's what this threads abt) It is believed (not proven) that it helps with nutrient transport and use of nutes in the plant.

If you are adding cal/mag to RO water that has 0 PPM of TDS, you will only add enough to bring TDS to 200-250 PPM. This in in the OK to drink range, much like well water with micro nutes in it. Or better analogy, look at a bottle of Dasani, RO water with a small measured amount of minerals replaced in it for taste.

There is not enough of cal/mag in water properly done to leave behind any trace of it after the flush. Hope this makes sence or cents.
In my original answer, "taste" there was a reference to finished, dry bud.
OM

[mx450guy]

When I first started to grow I was always spun up about making sure that this or that was right....I finally found out that the MJ plant is a very sturdy plant and cant take alot. I found a simple solution to my problem. I live in the city where my tap water is 250-300ppm (Im using a hydro system).. I found that if I buy a de clorinator filter for the shower at Home depot, I can get all the water I need( till the filter runs out)... as long as the chlorine is out of your water, the plants will deal with the rest hince no need for Cal Mag and other like items. I also have better luck using Honey instead of Molassis in my applications... I tend to yield about 1lb per plant.... Mi dos centavos...Mx

[BudSmoker510]

When I first started to grow I was always spun up about making sure that this or that was right....I finally found out that the MJ plant is a very sturdy plant and cant take alot. I found a simple solution to my problem. I live in the city where my tap water is 250-300ppm (Im using a hydro system).. I found that if I buy a de clorinator filter for the shower at Home depot, I can get all the water I need( till the filter runs out)... as long as the chlorine is out of your water, the plants will deal with the rest hince no need for Cal Mag and other like items. I also have better luck using Honey instead of Molassis in my applications... I tend to yield about 1lb per plant.... Mi dos centavos...Mx

What filter brand do you use?
My tap water is at 350-370ppm right now!

Where do I want it be be at?

What and how do you use Honey in your application?

Sorry for all the noobies questions.

[cdouglas869]

I have been using their B'cuzz line of nutrients. they don't even sell a cal-mag product. Green all the way thru to the end. Go to, [email protected] ask for a sample that's how I started using them. Happy trails

[dr.kush3]

dose this only apply to hydro when using ro that you have to add cal mag? or also in soil?

http://boards.cannabis.com/grow-log/...-water-og.html

[CanGroIt]

dose this only apply to hydro when using ro that you have to add cal mag? or also in soil?

http://boards.cannabis.com/grow-log/...-water-og.html

It also applies to soil....if using RO or Distilled, add micro nutes....

CGI::::::

[ZiggZagger420]

well calcium is good for veg and magnesium is good for flower but general hydroponics is good for nothing...it will make your soil so hot your plant will die right before your eyes I did a PPM test on my soil and it nearly blew up my meter...its always good to have a qt of cal-mag laying around when you want to destroy your plants even further I just found out about Super Natural Brand and IMO for soil or hydro its the best but before you get ready to throw that three month old project in the trash use super leech and cal-mag together and it will bust up all the salts gen hydro puts in there nutrients and your plant will start to veg again I saved a cali blue dream mother that way and if I would have stuck to gen hydro it would be on its way to the dump !! Every month at least leech your soil or at your next nutrient:thumbsup: change your plants will thank you...its not nice to see your PPM meter blow up

[ZiggZagger420]

if you use super natural brand you can throw your meters away its designed to run 700-1000ppm thats 1 to 2 teaspoons per gal and buffered so you will never need a meter...you only need a meter if your using crappy nutrients sorry about the dirt but thats the way it is or you can buy billions of dollars of garbage and make a recipie but lifes too short to use crappy nutrients:thumbsup: