You can do a straight pH'd water cleanse now I suppose if your MC is coming in the next day or two.
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How long do you think you have until harvest? Are the buds still growing(fattening up) and looking good?
So personally I wouldn't flush right now for deficiencies. Give her some straight pH'd water til runoff then bring the MC nutes in as soon as you can.
So personally I wouldn't flush right now for deficiencies. Give her some straight pH'd water til runoff then bring the MC nutes in as soon as you can.
If you have to use the 500ppm scale then read what they say about it so you are familiar.....
*EC is additive, so you measure your base water EC then add in the suggested amount.
For example: Base water EC .2, suggested dosage is 1.1, then final level will be 1.1 + .2 = 1.3
EC/PPM conversion for different meter types
1 ms/cm (EC 1.0 or CF 10) = 500 ppm
European 1 ms/cm (EC 1.0 or CF 10) = 640 ppm
Australian 1 ms/cm (EC 1.0 or CF 10) = 700 ppm
1 US Teaspoon (4.9ml) = 6 grams MEGA CROP
You could feed now but it's most likely just runoff so no point. Wait for them to dry out a bit and give them the MC.
I start my autos around 200-400 hundred ppm .Most of my autos haven't got taller than 2ft
I start my autos around 200-400 hundred ppm .
My tap water is around 140-170 ppm.
I think I cruised through veg around 450 ppm total usually .