how much nutrients does everyone use?

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Willie_wonder

Member
Hey guys, so I'm just trying to get a feel for what the proper ppm and feeding schedules should be like. Researching online and getting first hand accounts which worked for people are entirely different things I've found. Nutrient schedules I find online and from what people say usually differ by several hundred ppm. So I'm curious of what people use and how much. At the moment I use general hydroponic with cal mag, armor si, and RO water and my ppm comes to about 1200 in my fourth week of flower which insanely burned my plants. So how does everyone mix their water?
 
myke

myke

Well-Known Member
These are 3 weeks from rooted clone. Currently at 400 ppm. Will probably stay that way the rest of the grow. There pretty green so may back off on the N part. I’ve had crops before that stay dark green right to the end. I’ll have to start earlier in reducing the N this time.
 

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Willie_wonder

Member
myke said:
I dont go over 700 ppm and usually around 500 start to finish.
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Oh yeah definitely I’m trying to learn how to read the plant, but it gives off more mixed signals than my fiancé lol. And I’m just curious what everyone’s doing cause I thought like how I was doing it it was correct with an average flowering ppm of up to 1200, I’m quickly learning that isn’t the case.
 
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waterproof808

Well-Known Member
Use EC not PPM. Different PPM conversions means 700ppm on a 500 scale is 980ppm on a 700 scale.
I try not to go above 1.6 EC which is 800-1120ppm depending on the scale.

Jungle Boys talk about feeding as high as 3.0 EC on certain strains but they have very sophisticated monitoring systems and precision irrigation that allows them to push plants a lot harder than the average grower.
 
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93OG

Well-Known Member
I top up with Ro water every day, add nutes to bring it up to the original ppms mid week and do a complete change every 5-7 days.
 
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93OG

Well-Known Member
A lot of people try to cram as much nutrients into their plants as they can. IMO riding the on the over ferted edge is the wrong way to go. A plant will flower way harder with mild defs than with toxicities. I’m not saying deficiencies are ok, try to avoid them. I’m saying just because they can tolerate high levels of nutes it doesn’t mean it’s optimal. My theory is make what they need available and they can drink what they want of it. A mature plant an drink a 5gal dry in a day if it wants to. just my opinion though. I start out around 125 and slowly bring it up to 225 over the 4 week veg. I sometimes go higher if the girls like it but usually not. I’m in Arizona though with crazy low humidity. If you’re not in the desert you can probably go higher. When I live in Washington I ran around 450ppm. Hope this helps
 
Dontjudgeme

Dontjudgeme

Well-Known Member
Willie_wonder said:
Hey guys, so I'm just trying to get a feel for what the proper ppm and feeding schedules should be like. Researching online and getting first hand accounts which worked for people are entirely different things I've found. Nutrient schedules I find online and from what people say usually differ by several hundred ppm. So I'm curious of what people use and how much. At the moment I use general hydroponic with cal mag, armor si, and RO water and my ppm comes to about 1200 in my fourth week of flower which insanely burned my plants. So how does everyone mix their water?
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Based on how you grow will determine the answers you get. Soil will differ from hydro.
 
rkymtnman

rkymtnman

Well-Known Member
why don't you try Lucas formula? 1:2 ratio of micro to bloom (no grow) and you "shouldn't" need cal/mg either even with RO
 
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93OG

Well-Known Member
With Ro water add 1/2 the amount of cal mag as nutes. Say 1 tsp cal mag to 2 tsp a, 2 tsp b. Adds like 50-75 ppm for me. I use true cal mag oac because it has 0 npk So i don’t add extra n especially during flower
 
Renfro

Renfro

Well-Known Member
I run an EC of 2.0 - 2.2.

Thing is, you could have a lower ppm mix thats got too much nitrogen and still get burn. So it's not just about PPM it's about what the PPM is made of. With a proper balance of nutrients you should be able to feed at 1000 - 1100 PPM without issues.
 
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93OG

Well-Known Member
Willie_wonder said:
I’m using genera hydroponic, how do you keep your nutrients down? Using cal mag alone puts my ppm to almost 175?

Hydro growing this time around
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I use advanced mostly now, I think it reads a bit lower than other lines. To me its seems softer or gentler on the plants if that makes sense. Generals may read a bit higher on the meter.
Oh, and I’m talking ppms on top of your base water
 
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