All a ppm meter does is convert ec to ppm. Plenty of charts online to help you reverse the math there
It measures ec. In uS. Micro siemens
Convert too EC. It works.
What I've been wondering is what ppm scale is my pen, and what ppm scale does my nutes use
Well about 5 hours of research today, I finally found out and comprehended my pen operated by default on the 500ppm scale, and my nutes run on 700ppm scale.
Took me a while but I figured out how too change my pen from 500ppm too 700ppm scale.
I've been under feeding.
My EC is 1.1 and ppm is 800.
The nutrients call for 1400ppm and 2 EC.
With the 500ppm system could only get 1000ppm before hitting 2EC.
At least I am on the right scales now with the nutes and the pen.
I will choose my strongest plant and give it a full big feed ?
Will be nearly doubling the ppm and EC.
And we will see what happens.
Also will feed the mag sulfate.
Then I will flush the plant and continue too feed the same mixture I have been feeding, I log all the waters, and don't make any changes and when trying new things I'm not making big changes, trying too educate myself and take the most educated guess and give it a go, trial and error.
Hence only using one plant as a test. They are all ak47/white widow, it's called kalishkanov I love it grew it ten years ago same breader.
It's so Indica and tight rod branches, I got 12 oz of this plant in 42 degree Celsius heat in the worst conditions alot of sun. But, this thing had only 4 too 6 side branches and one main cola. About 5 to 6 solid rods and took 20 mins too manicure all the leaves and hang it. Was some really interesting strong terps and crystals it was unreal. Straight up fire haha
As for watering, now I have a auto watering system, I have watered 3 times today. Doing 3 times a day up from 1 a day.
The same old weak underfunding concentration just in the reservoir, I have been recirculating that, no air stone, but taking measurements of the water, pH down is all I'm doing too this water.
But the 3 times watering a day, day 2 currently soon day 3.
I don't know If it's just me but I feel like the plants are getting more food with 3 a day, I have around 100 ppm in the res of straight magnesium sulfate crystals, and yeah just all the damaged yellow spotty leaves are starting too turn green.
If this watering 3 times a day ect fixes the problem, I still will try increase the food I am feeding just for fun.
Anyone ever played around with silica and noticed a difference too grows where they didn't use it ?
Happy new year guys, I pray too make 2023 the best year of my life yet and really achieve highly this year with physical and mental.
Nice herbs will be a nice addition bit of a luxury lol