Can anyone explain how should i use cal mag whit RO water in soil

zoihzco

Member
Okai sooo..can anyone help me? there is so much misinformation and at this point everything i ve read is about cal mag and ro water is so confused let me explain. Im using RO water and AdvanceNutrient cal mag what i did is reach 150ppm 1st week , 200 ppm in the 2nd week and the base for all the grow. For example in week 3 i take my ro water i put cal mag in there until reach 200 and then i add fertilizer when i have to added but is that enough cal mag?
i was very sure im not gonna get any Calcium or mangensio defiency using cal mag but then is saw this. First of all is this cal or mag def? i really think it is but im not sured75ca32e-106c-4787-ae2d-d307c5da1b1c.jpgweek 5 111.jpgadc44fc5-1d56-4bd4-931d-bd282141dc93.jpg1efb2eca-661d-4619-be40-ab198ceb795b.jpg
 

Kingrow1

Well-Known Member
The top picture is where cells have lost too much water or couldnt uptake enough and those parts futhest from the leaf veins and leaf water supply have dried which we term interveinal.

If your ferts have cal and mag in mostly you dont need any extra in indoor soils.

I see a thermometer in the light - thermometers need shading from all light direct and indirect as well as humidity meters or the light heats them and readings are out by a vast amount. Remember its air temp not light we are trying to read.

Ignore calmag a lot, if that was the problem and you added calmag it would simply solve itself... Best i can say :-)
 

Dr. Who

Well-Known Member
Low leaves don't matter.
Whats going on up top?

What soil?
It should have all you need in it....or simply supplement a good half cup of Dolomite lime to a bag of FFOF or about any soil if you need.
That will cover Mag needs too.
 
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