Help please

Bbc5272 · Apr 18, 2020

6 weeks into flower with ww.
Using big bloom and mega crop every other feed . Every other day .
Foxfire soil.
2sf2000. I moved the lights up thinking light burn . Still may be ?
I flushed Saturday and fed mega crop this morning . Soil ph is 5.2 good or bad ?
What is this and any suggestions or is this normal ?
Thanks a ton

BluntMoniker · Apr 18, 2020

Its nutrient burn

PadawanWarrior · Apr 18, 2020

Bbc5272 said:
6 weeks into flower with ww.
Using big bloom and mega crop every other feed . Every other day .
Foxfire soil.
2sf2000. I moved the lights up thinking light burn . Still may be ?
I flushed Saturday and fed mega crop this morning . Soil ph is 5.2 good or bad ?
What is this and any suggestions or is this normal ?
Thanks a ton

I think you mean Fox Farms, but anyways 5.2 is way to low for soil. For soil you want a pH of 6.0-7.0, and preferably around 6.4-6.5. I'd probably cut back on the nutes also. You might be giving them too much love.

BluntMoniker · Apr 18, 2020

Your smart phone has the capability of being used as a LUX meter. Download a LUX meter app, and use that to adjust your lighting. It's likely not perfectly accurate, but will help you figure out roughly what your light is doing at the canopy. But that is definitely not light burn/bleaching, its nute burn

But the fact that your watering every other day, AND feeding it every other day, is burning the shit out of it. The plant doesnt use all the nutrients you give it in 48 hours, so every time your watering, your increasing the concentration of salts in your medium.

From this point, dont feed it again for at least a week. You may even want to flush your medium to remove what's built up in the root zone, to prevent further damage.

And in the future.. feeding once a week in soil is usually more than enough. Sometimes, I'll only feed every 10-14 days depending on what the plant is telling me it needs.

Bbc5272 · Apr 18, 2020

BluntMoniker said:
Your smart phone has the capability of being used as a LUX meter. Download a LUX meter app, and use that to adjust your lighting. It's likely not perfectly accurate, but will help you figure out roughly what your light is doing at the canopy. But that is definitely not light burn/bleaching, its nute burn

But the fact that your watering every other day, AND feeding it every other day, is burning the shit out of it. The plant doesnt use all the nutrients you give it in 48 hours, so every time your watering, your increasing the concentration of salts in your medium.

From this point, dont feed it again for at least a week. You may even want to flush your medium to remove what's built up in the root zone, to prevent further damage.

And in the future.. feeding once a week in soil is usually more than enough. Sometimes, I'll only feed every 10-14 days depending on what the plant is telling me it needs.

So feed every 10 days roughly and just water in-between?

BluntMoniker · Apr 18, 2020

Bbc5272 said:
So feed every 10 days roughly and just water in-between?

It's not exact. It varies strain to strain, plant to plant, as far as what the plants nutritional needs are.

In my setup, using my nutrients, usually every other water has food in it (watering roughly once a week). There are too many variables, for me to tell you anything definitive.

What I can say, is that less is more. Your plants will be more negatively effected, by overfeeding, then under feeding

Merlin1147 · Apr 18, 2020

Nutrient burn. Try checking the EC of the run off, it’s probably very high. Just be aware that the symptoms may get worse even after you corrected the salt problem. Most times leaves don't repair themselves unless you catch things in the very early stages. You may find the yellowing leaves go crispy.

Bbc5272 · Apr 18, 2020

Merlin1147 said:
Nutrient burn. Try checking the EC of the run off, it’s probably very high. Just be aware that the symptoms may get worse even after you corrected the salt problem. Most times leaves don't repair themselves unless you catch things in the very early stages. You may find the yellowing leaves go crispy.

The runoff ph is actually 5.2 . Thats the only way I know to check is ph. I flushed the mega crop and going to let it ride for the next few days to see what she does. I am 2 weeks rough from harvest . Will this destroy final product ?

Merlin1147 · Apr 18, 2020

You’ll be okay. Just ride it out and maybe get an EC meter. You’re way more than 2 weeks from harvest though. More like 4.

BluntMoniker · Apr 18, 2020

Bbc5272 said:
The runoff ph is actually 5.2 . Thats the only way I know to check is ph. I flushed the mega crop and going to let it ride for the next few days to see what she does. I am 2 weeks rough from harvest . Will this destroy final product ?

He said measure EC (Electrical Conductivity). Its similar in a sense to PPM (parts per million), in that it let's us know what's in our water at what levels.

EC and PPM meters are a more exact way of measuring our nutrient mix, before giving it to our plant. It's also useful for measuring what comes out.

Like I said previously, when your adding nutes every other day, the concentration is going to build up over time. So if you were to measure the runoff from your soil, you'll be able to see how concentrated the nutrients are in your soil.

a good EC/PPM meter can be expensive, but can really help you dial in your grow

spek9 · Apr 18, 2020

Bbc5272 said:
I flushed Saturday and fed mega crop this morning . Soil ph is 5.2 good or bad ?

pH your nutrient/water mixture before you feed the plants with it, not after it's been run through the medium. To test the pH of the medium, use a soil pH tester.

getogrow · Apr 18, 2020

That soil is full to the max causing lockouts. It is not bleaching, im 100% on that. Your going to want to feed her water only like blunt said. Use water only for at least 3 waterings an go by the plant not by the "every two day" thing....do whatever you have to , to know when its time to water....(weight of the pot is easy with just a few plants) Im guessing it will take at least 3 days in between waterings ....prolly 4 or 5. That will give her a chance to consume all the extra food in your soil which in turn will fix your ph and medium. No need in taking leafs off her either....let them grow.

Bbc5272 · Apr 18, 2020

spek9 said:
pH your nutrient/water mixture before you feed the plants with it, not after it's been run through the medium. To test the pH of the medium, use a soil pH tester.

I did that and was 6 .4 before and with a soil ph I got 5.2 . Is that normal ? I am very new to this

Bbc5272 · Apr 18, 2020

BluntMoniker said:
He said measure EC (Electrical Conductivity). Its similar in a sense to PPM (parts per million), in that it let's us know what's in our water at what levels.

EC and PPM meters are a more exact way of measuring our nutrient mix, before giving it to our plant. It's also useful for measuring what comes out.

Like I said previously, when your adding nutes every other day, the concentration is going to build up over time. So if you were to measure the runoff from your soil, you'll be able to see how concentrated the nutrients are in your soil.

a good EC/PPM meter can be expensive, but can really help you dial in your grow

So with a 6.4 water /nute mix in the jug and with a soil ph 5.2 and run off 5.2 i was doing this wrong and need an ec meter to read more exact ? Thank you very much .appreciated

BluntMoniker · Apr 18, 2020

Bbc5272 said:
So with a 6.4 water /nute mix in the jug and with a soil ph 5.2 and run off 5.2 i was doing this wrong and need an ec meter to read more exact ? Thank you very much .appreciated

pH and EC are 2 completely different things. pH is a measurement of acidity/alkalinity. EC is a measurement of electrical Conductivity.

you need a slightly acidic soil (pH between 6.0 - 7.0) when growing in soil. pH your water/nutrients in that range, and you should be fine.

As for EC, here's a good article all about EC, ideal measurements for different phases of growing, etc etc:

The ideal ec range for cannabis plants - CannaConnection

EC stands for 'Electrical Conductivity' and is a measurement scale for the concentration of chemicals in your nutrient solution. More at CannaConnection!

www.cannaconnection.com

PadawanWarrior · Apr 18, 2020

Bbc5272 said:
So with a 6.4 water /nute mix in the jug and with a soil ph 5.2 and run off 5.2 i was doing this wrong and need an ec meter to read more exact ? Thank you very much .appreciated

You obviously didn't read my post. You're soil is too acidic man. You need to work on bringing it up.

Bbc5272 · Apr 18, 2020

PadawanWarrior said:
You obviously didn't read my post. You're soil is too acidic man. You need to work on bringing it up.

When I did the flush I did make the ph 7.2 which is higher than normal . Usually 6.0 . In doing that will it help bring up the ph ? I used no nutes. Sorry to be confusing never had this happen

PadawanWarrior · Apr 18, 2020

Bbc5272 said:
When I did the flush I did make the ph 7.2 which is higher than normal . Usually 6.0 . In doing that will it help bring up the ph ? I used no nutes. Sorry to be confusing never had this happen

Yes, watering with a higher pH will slowly raise the soil pH. I aim for the soil pH to be around 6.5, so if my soil pH was 6.0, I would water with a pH of 7.0 to slowly bring it back to 6.5. You could also use 8.0 or even 9.0 pH water to get the soil back faster, but I just do it gradually, since I have worms in my soil and they're sensitive to extreme pH levels.

Bbc5272 · Apr 18, 2020

PadawanWarrior said:
Yes, watering with a higher pH will slowly raise the soil pH. I aim for the soil pH to be around 6.5, so if my soil pH was 6.0, I would water with a pH of 7.0 to slowly bring it back to 6.5. You could also use 8.0 or even 9.0 pH water to get the soil back faster, but I just do it gradually, since I have worms in my soil and they're sensitive to extreme pH levels.

I appreciate all the help

PadawanWarrior · Apr 18, 2020

Bbc5272 said:
I appreciate all the help

Don't confuse soil pH with runoff pH though. But runoff can at least give you an estimate.

Help please

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