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ppm levels

berryman

Member
I realize this topic has been discused in the past and i have found really good info on iy but i have a question pertaining to my particular grow. growing ak47 in hydroton on ebba on flow tables. i am putting them into flower straight from well rooted cones. at harvest time they are only about 1 1/2 to 2 feet tall max. first six weeks are newt reg and the final 2 weeks are straight h20. my question is what ppm's should i start out with and progress to over the six weeks.
 
Y

yamaha_1fan

During the previous grow/grows, did you monitor the PPM's? What were they? More importantly did they go up or down after several days? If they went down, that means they could use more nutes. If they went up, you were feeding too much.

1.5 to 2 foot stretch doesnt seem bad to me

Otherwise how did they yield?
 

philmb

Member
theres not really a rite or wrong answer to this. i dont use ppm but ec. Same thing i suppose..
Monitor your plants everyday n that will tell you how strong to mix your nutes.

Like yamaha said: mix your nutes, take a reading....... next day, take another reading. if your ec has gone up: then your mixing your nutes to strong. n your plants are kinda drinking up more water than nutes. leaving your mix stronger........ if your ec is lower, then your mixing to weak. yout plants are trying to take suck up more nutes n leaving water behind........ after a few days of this, you'll find a "sweet spot" were your ec stays about the same.. then when it starts to wander around one way or the other, your plants are getting bigger or whatever n they need more nutes. your ec readings will tell you..
 

berryman

Member
i did monitor them on the other grows but it seems like i have some fine tuning to do. i was just looking for a good base line to start from with all these great growers out there. i appreciate all the help and i'll get right on it. thanks
 

HeadyPete

Take Five...
Veteran
Here is a basic guide:

Indica's
Seedlings and clones 300-400ppm 5.3-5.5 ph
early vegg 500-600ppm 5.3-5.6 ph
middle vegg 600-800ppm 5.4-5.6 ph
late vegg 800-1000ppm 5.5-5.7 ph
early flower 1000-1300ppm 5.5-5.7 ph
middle flower 1400-1600ppm 5.5-5.8 ph
late flower 1000-1100ppm 5.5-5.7 ph
ripening 300-500ppm 5.4-5.6 ph

sativa's
seedlings and clones 250-350ppm 5.3-5.5 ph
early vegg 300-500ppm 5.3-5.6 ph
middle vegg 500-700ppm 5.4-5.6 ph
late vegg 700-900ppm 5.5-5.7 ph
early flower 1000-1100ppm 5.5-5.7 ph
middle flower 1100-1300ppm 5.5-5.8 ph
late flower 800-1000ppm 5.5-5.7 ph
ripening 300-500ppm 5.4-5.6 ph
 
J

jaw

i always go light though. you can always add more and the plants will respond immediatly. if you add to much, it will burn them and slow them down. i think i have fried about half of my total harvests. with trying to get maximum yeild and feeding them as much as possible.
 
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FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
I start with nutes at 1/2 strength and ask my plants what they think. Trust your plants, they'll never lie to you.
 

berryman

Member
i have to assume that the larger the plant is the more food it needs. sounds logical. so the ppms is the amount of food in the water. how can there possibly be a basic guideine for feeding. these plants are coming from clone to flower. you would think their "guideline" for feeding would differ from plant size to plant size. does this make sense or am i off base.
 

FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
All your base are belong to us! Sorry couldn't help it ...

It's not so much sheer size or mass as it is stage of development and differences between strains and individuals. When large, they'll drink a greater volume of nutes but may desire a weaker solution. Rather than use the meter to match a chart, use the chart to start you off and the readings to dictate adjustments.
 

berryman

Member
thanks everyone. one last thing. when you refer to half strength newts, how much is that. the side of the bottles dont really tell you what to use. it jst gives you the proper amounts to add to get a certain ppm
 

FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
Nutes generally have formulas on the bottles for various stages of growth. Whatever your bottle says is normal for full grown plants, cut it half and see how she reacts. Using Lucas as a model, the bottle said 0-5-15, Lucas said 0-8-16, my plant said 0-3-6.

EC and pH meters are like Star Trek Universal Translators. They allow us to speak "Plant" Use the readings to listen to your girls. They will never lie to you.
 

gopers

New member
I have a Bluelab Truncheon Meter, and right now it is reading 2.6 EC and PPM of 1300. From seeing the post above, its too high. I am at my first week of flowering.

From what I read, start low ie; less nute levels, then work my up.

Can I save my current resevoir mix now by adding RO water to dilute?

Right now I am growing Sativas,Indicas, and Hybrids. So, should I do a happy medium?

I am using an E&F table that is 3'x3'. 20 gallon res., plants in 6"x6" rockwool cubes, and a 1000 watt HPS.

Also, I found green algae growth that is pretty smelly. My son who has aquariums says that the algae growth in his tanks is caused by too many nutes in the water, but he uses some type of filters for that.
Any suggestions?

This is my first go. I will be the first to admit, oh boy, I have made some mistakes.

I'm just glad I discovered this site!
 
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Deft

Get two birds stoned at once
Veteran
All your base are belong to us! Sorry couldn't help it ...
LOL!

Find out what your meter multiplies by, theres a list somewhere, could upload it I guess. When in doubt go by EC and what plants say. I think all meters use EC and maybe temp to gage the ppm.

Edit: heres that chart I was talking about.


 
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FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
gopers said:
Right now I am growing Sativas,Indicas, and Hybrids. So, should I do a happy medium?

I am using an E&F table that is 3'x3'. 20 gallon res.
If you're doing multi-strains from a single res, a "happy medium" is the best you can hope for but, will probably leave all your plants unhappy one way or another.

Where's the Algae? Cubes can be covered with foil or other materials to keep algae at bay. Make sure your res is light proof and highly aerated to keep algae out of the water.

I'd avoid filters. Filters come in two types: Mechanical and biological. Mechanical (floss, carbon) removes from the water, it may remove things you need. Biological is a living ecosystem. A cycle that converts this to that to the other thing to something you want. It's a whole new ball of wax I wouldn't recommend to beginners.

Glad you found us. Before I came here, I measured my colas against my thumb. 6 months later, I was measuring them with my forearm. Darn you ICMag!
 

gopers

New member
Thanks Freezerboy. I bought an airstone today after your post and put it in the res. problem now is that I need a stronger pump! The bubbles are not as much as the 12" stone can put out. The algae is in the water and is growing on the E&B table
 
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FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
Algae on the tray/table means it can't drain/dry/evaporate fast enough. Staying wet in sunlight will do that. Fashion some sort of skirt? Fill with Hydroton?
 

lightmove

Member
pH

pH

When is the right moment to check pH of solution? Should i adjust pH of plain water and after that mix the solution or first mix the solution and then adjust pH?
 
Ok Freezerboy: so you say "my plant said 0-3-6" by this you mean, you started with 0-8-16 and ended up with 0-3-6?? So are you saying you started with the lucas method (I think) and so if you check ppm readings everyday how did you adjust everyday? Obviousley in the beginning you were over (as I think I am) and had to back down, so how did you go about that? Did you do a complete water/solution change? And if you went from 0-8-16 to 0-3-6 did you just begin your reduction by backing down by 1, or 1/2?

I always figured my plants were just drinking more water (and that little voice told me something was off) but I figured something was up. Funny how you come upon these facts.
 

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