Grow diary featuring my irrational obsession with Hawaiian strains

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Are you PH'ing plain water or a nutrient mix?
I add calmag and a tiny amount of masterblend. I have well water with 8.0+ as normal pH. I also have an RO filter and have used that. I also tried with distilled water but I just suck at it...and the pen seems to jump all over...goes from a lot too high to a little too low...so I add more water and then it’s way too high again. dying here...
 

Rootbound

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I add calmag and a tiny amount of masterblend. I have well water with 8.0+ as normal pH. I also have an RO filter and have used that. I also tried with distilled water but I just suck at it...and the pen seems to jump all over...goes from a lot too high to a little too low...so I add more water and then it’s way too high again. dying here...
So you are not adding any more nutrients to the water before you use it. Really tough to ph ro water with just a little calmag.
 
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Ok. Sounds like you are using to much ph up/down at one time. I keep my ph up/down in bottles that have a dropper type top on them. One drop in a gallon of nutrient water normally raises or lower it by about .2
bingo! I measured with a spoon. OK so I just mixed up a gallon of distilled with calmag and masterblend...i read that it should sit 24 hours before using so I will adjust the pH then...with drops not tsp. thank you!
 
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1 gallon recipe:

Screenshot_20190829-170014_Chrome.jpg


Hope this helps, if you have other questions I can only tell you how I'm using it but it's working very well for me


One last thing, you can mix the master blend and the magnesium sulfate together

but you can't mix the Cal nitrate with it

you have to dissolve the master blend and magnesium in water first

and then mix the appropriate amount of calcium nitrate into the solution last

Screenshot_20190829-170432_Chrome.jpg
 
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For coco coir. My water pH is about 7.8 out of the tap. After I add my masterblend nutrients (veg and flower have different formulas) that’ll bring the bring the pH down to about 6.8-7.0. I then add anywhere from 2.5ml to 4ml of pH down to get my pH 5.8-6.2. I test with pH pen. It’s better to add a little at a time than add to much and have to fix it.
 
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thanks everyone! so here is my plan...I just filled a gallon jug with ro...added 1/4 t tomato/veg mb, shook it til dissolved; added 1/8 t magnesium sulf, shook til dissolved; added 1/8 t calcium nitrate, shook til dissolved. This is for tomorrow so I will add 1/4 t calmag and then pH it before use. does that sound correct?
 
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thanks everyone! so here is my plan...I just filled a gallon jug with ro...added 1/4 t tomato/veg mb, shook it til dissolved; added 1/8 t magnesium sulf, shook til dissolved; added 1/8 t calcium nitrate, shook til dissolved. This is for tomorrow so I will add 1/4 t calmag and then pH it before use. does that sound correct?
I measure mine on my digital scale I don't know how much it is by the teaspoon?

But I have everything right here let me see if we can find out what a quarter teaspoon weighs

20190829_180647.jpg



1 level quarter teaspoon of masterblend is about 1 gram
 
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