Megacrop 2 part adjustment help

2cent

2cent

Well-Known Member
Long talk with many peeps says ignore my tds pen and follow the bag a then b. And read the plants.

Question is my tap water is 395ppm base quite hard water i know.

But heres my problem when i add to my 200litre tanks the dose by the pack. 222.22gram bag a and 132.28gram bag b

GLN says ppm should be 661 +base so 1056ppm total.
My ppm reads 1700 and yeah i calibrated it and checked scale.

GLN said ignore the ppm as some electrical conductive ions read differently and cant be trusted.
Ok i can get on with that.
But my plants have some leaf curl.liand hydro stopped drinking water a sign ec is too high


Question is
1.

Do i mix up a stock solution of a and b in a bucket with day 5 litres water 222g bag a and 132g bag b and add it to my res until i get to 1056ppm? Cause this would use half the food only (advice from a forum user on 420)


Or
2. Do i take out 40litres and add it plain to lower? Still seems like i am only using half the doseage npk reccomended then.



Or

3 do i adjust calnit to reduce nitrogen and possibly ppm?





My ec reads 3.2 and i feel thats too hot.

@@@@@@@
Same problem in the veg room.

I add nutes as dose says and 1700ppm i feel scared to feed em it and what do i adjust if too strong?
Dont wana drop off the npk scale the wrong way
 
Wastei

Wastei

Well-Known Member
2cent said:
Long talk with many peeps says ignore my tds pen and follow the bag a then b. And read the plants.

Question is my tap water is 395ppm base quite hard water i know.

But heres my problem when i add to my 200litre tanks the dose by the pack. 222.22gram bag a and 132.28gram bag b

GLN says ppm should be 661 +base so 1056ppm total.
My ppm reads 1700 and yeah i calibrated it and checked scale.

GLN said ignore the ppm as some electrical conductive ions read differently and cant be trusted.
Ok i can get on with that.
But my plants have some leaf curl.liand hydro stopped drinking water a sign ec is too high


Question is
1.

Do i mix up a stock solution of a and b in a bucket with day 5 litres water 222g bag a and 132g bag b and add it to my res until i get to 1056ppm? Cause this would use half the food only (advice from a forum user on 420)


Or
2. Do i take out 40litres and add it plain to lower? Still seems like i am only using half the doseage npk reccomended then.



Or

3 do i adjust calnit to reduce nitrogen and possibly ppm?





My ec reads 3.2 and i feel thats too hot.

@@@@@@@
Same problem in the veg room.

I add nutes as dose says and 1700ppm i feel scared to feed em it and what do i adjust if too strong?
Dont wana drop off the npk scale the wrong way
Click to expand...
First of all don't take advices from the same people selling the product. They simply want you to use as much product as possible for profit.

3.2 EC or 1700ppm is way high. We all been using EC/ppm meters forever with great results. We post EC/ppm values because otherwise we would not have any point of reference.

If you're growing in soil 400ppm is more than adequate in flower IMO. Just feed-->feed-->water. Cheers!
 
DrKiz

DrKiz

Well-Known Member
I agree with the guys above. 3.2 EC is WAY too hot.

Maybe get yourself a RO Buddie off of amazon? That way you eliminate the source of the problem completely. I think they are like $90
 
2cent

2cent

Well-Known Member
TintEastwood said:
Are you using one of these recipes?

Grams for 200 litres...
View attachment 4762079
Click to expand...
Theres a face im happy to see.

Yes using their single tank 5 12 26. 2 part. Bag a bag b. Calc

My hydro room week 6 flower
My hydroponic is rdwc spray bars. 200l 4000lph

And is who showed leaf curl and stopped drinking water so i ditched 40litres for 40 plain made ppm 1150.
Was worried that wud be low now as ive reduced the npk?

My new veg room 4 week veg
I am coco airpots with feed barrel on timer 4hr feeds i have 2 sides of the tent the far right is my advanced nutrients plants as comparison to use leftover nutes.
And left side closest megacrop.
Both are fed from seperate 100l water butts on an imperium feed timer. There on halo drip rings 2000lph each side.

Same did barrel to the GLN calculator single dose 2part.
Got 1700ppm. So scared i got half the barrel out and filled up plain water til ppm read 870
(going by the GLN ppm tab on calculator to see ppm that dose on first tab said i should have however its always double ppm) 20201206_223607.jpg20201206_223522.jpg20201206_223355.jpg20201206_223338.jpg20201206_195010.jpg20201206_194745.jpg20201206_194726.jpg20201206_121359.jpg20201206_121410.jpg20201126_215754.jpg
 
2cent

2cent

Well-Known Member
Hydro full room pic is 2week old before i swapped to mc. They drank first time exploded (bud pics) and stalled wont drink hence ec too high 20201204_185800.jpg20201204_185521.jpg20201204_185514.jpg20201204_185427.jpg20201129_232454.jpg20201122_233557.jpg20201122_233548.jpg
 
2cent

2cent

Well-Known Member
Adding water literatly double to get ppm to match ppm calculator.
Arnt i just runing half the bag strenght then?
So i could just calculate like 111gram instead of 222gram? (in the 200l tank)

Or do i keep that 222 and adjust bag b?

But isnt that reducing the npk number targets im trying to hit? But unable to hit if ppm is like that lol
 
2cent

2cent

Well-Known Member
TintEastwood said:
200 litres.

Are you mixing this bloom ratio?
222 grams part A
95 Part B

View attachment 4762161

222
132?
Click to expand...
I did 222 95. But was told by a few npk wizzards that the 132 should be kept as the 3.1.4 i think he said. it makes is perfect and similar to the singles dose.

Spoke with u before i baught it. I so wish i came back to u. Just found a thread on 420 tht seemd really good and kept on it. Skybound writes a guide on making salt nutrients and progamming hydrobuddy which i was trying to accomplish and followed on a few threads he wrote on megacrop etc.
 
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2cent

2cent

Well-Known Member
Iswapped my hydrotank
200l a222. 22 b 95.23

Do i need to add more or use a booster? Im week 5 flower

Click to expand...
Click to expand...
Skybound

Based on their recommendations of 4.2g Part A, and 1.8g Part B, it comes out very close to their 1 part except it has about 100ppm more Sulfur.
If I were using MC 2 part, I would go 4.2/2.5 for the whole grow. K is a little too rich for my liking, but K is an element that a plant can almost not OD on

So i followed cause il admit i felt lost from somany different ideas i grabbed the closest crutch lol.
 
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TintEastwood

TintEastwood

Well-Known Member
Greenleaf. All in gallons...

I calculated the NPK ratios and made epsom adjustments.
MC2-Bag-Feed-Chart-with-Ratios.png

I was running these numbers.
Feed ec of 1.6 - RO water.
Jacks-Fall2020-Bloom-Mix.png
 
2cent

2cent

Well-Known Member
TintEastwood said:
Greenleaf. All in gallons...

I calculated the NPK ratios and made epsom adjustments.
View attachment 4762218

I was running these numbers.
Feed ec of 1.6 - RO water.
View attachment 4762220
Click to expand...
I knew id seen this before with epsom
Was told i was crazy.

Even with my hard tap 395?

It looks the same as their doseages?
Is that failsafe? Like if my ppm says different it must be wrong?
Cause if i add 2.5gram per gal of each before i touch epsom i get 3.2ec 1800ppm? On 395 base why?

Man ur stuff stuck in my head from weeks ago slap me self for not coming to find ya now
 
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TintEastwood

TintEastwood

Well-Known Member
2cent said:
I knew id seen this before with epsom
Was told i was crazy.

Even with my hard tap 395?

It looks the same as their doseages?
Is that failsafe? Like if my ppm says different it must be wrong?
Cause if i add 2.5gram per gal of each before i touch epsom i get 3.2ec 1800ppm? On 395 base why?

Man ur stuff stuck in my head from weeks ago slap me self for not coming to find ya now
Click to expand...
If I were you I would probably do a step by step dealio.....

Unless you know for certain your tds pen is accurate...
Ideally use 2 different tds pens. Some pens can become less accurate as ppm increases.

Write down readings from both pens on each step.

Start with 1 gallon of tap.

Check/Write down. Log ppm on a piece of paper.


Add 2.5 grams Part-A
Stir and fully dissolve. Dont rush it. Mix well.
Check/Log ppm.

Add 2.5 grams Part-B
Mix like a mofo again.
Check/Log ppm.

Now you can do the math to figure out the ppm for each part of the above. Compare to what you expected...
Example only...

Tap 400 actual.
MC 350 expected 450 actual
Calnit 250 expected 300 actual
...
Total 1000 expected....etc.




Also. Why not do all of the above, but start with 1 gallon of RO. Compare tds and PH.

Is one more ph stable? RO vs Tap. I understand wanting to use the tap with such a big res.



I'm a DWC dummy. :sad:
 
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2cent

2cent

Well-Known Member
TintEastwood said:
If I were you I would probably do a step by step dealio.....

Unless you know for certain your tds pen is accurate...
Ideally use 2 different tds pens. Some pens can become less accurate as ppm increases.

Write down readings from both pens on each step.

Start with 1 gallon of tap.

Check/Write down. Log ppm on a piece of paper.


Add 2.5 grams Part-A
Stir and fully dissolve. Dont rush it. Mix well.
Check/Log ppm.

Add 2.5 grams Part-B
Mix like a mofo again.
Check/Log ppm.

Now you can do the math to figure out the ppm for each part of the above. Compare to what you expected...
Example only...

Tap 400 actual.
MC 350 expected 450 actual
Calnit 250 expected 300 actual
...
Total 1000 expected....etc.




Also. Why not do all of the above, but start with 1 gallon of RO. Compare tds and PH.

Is one more ph stable? RO vs Tap. I understand wanting to use the tap with such a big res.



I'm a DWC dummy. :sad:
Click to expand...
Awsome man.
Nah ive never used ro its not a thing here yet like over there. But ive looked at em and im gona get 1.

Nah tap is 7.3ph all the time never changes. Its 370 to 390 ppm. Due to fluride/chrloine/amonia(which combines to chloramine) and limescale.

What is ro water? I know what it is but like ph wise? I know ppm is like 0.
We drink bottled water lol.

Never had a problem with tap water but never tried ro so...



Now i watched a video on a npk calc. Now from what it looks like to me correct me now.

The bag a npk is set to n5 p12 k26...
Rite now if i add say 1 liter 0.5grams. Does this have a n5 p12 p26 still but only have a small portion like a kids meal.

Then if i add 1gram a it will have a dinnerpkate of 5 12 26.

And if i add 2 gram it has a giant feast plate...

So basicly does it all jave the same npk in the bag whatever dose its just howmuch of its avalible.

Eg my kid wants the same burger but wants smaller and takes tiny bites

Where as i want the same ingredient burger but bigger and bigger mouth fulls?

Its not like a lesser grams per gal means im gona use less flour(n) and salt(p). But the same ratio from the same bowl made smaller bite size.

If i gave him my burger or 4 little burger he wud be sick as he grows hell take an extra burger but 3 might be all he wants grown up lol

I think ul be confused nowvlol.


I am worried adding water to reduce ppm is chs gibg the numbers in my npk target... But is it npk still the same just less of it there?


Il do what u said. Il buyba new pen tomorow different brand and go compare with pics too
 
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2cent

2cent

Well-Known Member
TintEastwood

TintEastwood

Well-Known Member
2cent said:
Tint u sexy thing hahaha
Ive asked somany peeps.
U solve me in 3 posts
<3 respect. Bow. I owe u a smoke if u ever over this pond lol
Click to expand...
Oh yeah. You need to make sure you are using the correct Tds/ec on the correct scale! .500 .vs. .700. Etc

All I use is .500

What are the different conductivity scales? What do they mean?

EC, CF, ppm500, ppm700, TDS... What's the difference? EC and CF are measures of electrically charged nutrient ions in a solution. Pure water will not conduct electricity. Water usually conducts electr
support.bluelab.com support.bluelab.com
 
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