Need help adjusting to LED

Milky Weed

Well-Known Member
Luckily the photone need for the diffuser is for 20# white paper, which is the bulk of standard copier/printer paper in the world these days, and my burgeoning side hustle in lifting whiteout, paperclips and printer paper is dovetailing very well with the growing side hustle (personal use only).
Hey man whiteout is a hot commodity
 

Nutty sKunK

Well-Known Member
So PPFD is reading at 780ish… but just take a look at the leaf temps. Ambient is around 25c but the bigger plants have much cooler leaves than the seedling

B2521FB4-BE0D-49FE-8B54-6E2B9E016ACD.jpeg7E98E411-1B7D-47C9-9A48-7410AF083453.jpegDCCADCAD-4C2F-4877-A012-8F0EEB1EA999.png
 

CheGueVapo

Well-Known Member
Do they have anything for a Samsung?
Maybe try "Galaxy Sensors", it could work for your device. It retrieves "lux" ... but you must point it straight toward the source.... it is not wide-beam entry. *

The good sensors have a white translucent dome to catch all light from all sides.... the iphones/android-sensors for luminance do not. They are not pretty acurate. For me "galaxy sensors" works only up to 12000lux... more is not displayed.
 

CheGueVapo

Well-Known Member
So PPFD is reading at 780ish… but just take a look at the leaf temps. Ambient is around 25c but the bigger plants have much cooler leaves than the seedling

View attachment 5002761View attachment 5002762View attachment 5002763
You measure the wrong distance... where you hold the laser, theres more wall in the background than anything else. The moore distance the wider gets the measurement area.... when you want to measure your seedlings small leafs, you must go close... or you read the average of it and the soil and the walls :D

distance.jpg
R.ead T.he F.ine M.anual

The laser-dot not actually measures or reads... it just shows you where the centre is... but the distance determines the spot average measuring size.
 
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Nutty sKunK

Well-Known Member
You measure the wrong distance... where you hold the laser, theres more wall in the background than anything else. The moore distance the wider gets the measurement area.... when you want to measure your seedlings small leafs, you must go close... or you read the average of it and the soil :D

View attachment 5002798
R.ead T.he F.ine M.anual

The laser-dot not actually measures or reads... it just shows you where the centre is... but the distance determines the spot average measuring size.
Perhaps it could be more accurate but it’s obviously showing at different distances that the leaves are a lot cooler than they should be.
 

CheGueVapo

Well-Known Member
Cant tell. I always make sure measuring at close distance and that the measuring Spot-Size at that distance (D:S) is completely fuill of leafs/buds... no gaps, no walls, nothing... from top down I measure, not some sideways... what are you doing there?

Take your IR-meter... hold it from above close distance onto a bud... read... read some more... check your MIN MAX... thats the range your canopy is in!
 

Nutty sKunK

Well-Known Member
Cant tell. I always make sure measuring at close distance and that the measuring Spot-Size at that distance (D:S) is completely fuill of leafs/buds... no gaps, no walls, nothing... from top down I measure, not some sideways... what are you doing there?

Take your IR-meter... hold it from above close distance onto a bud... read... read some more... check your MIN MAX... thats the range your canopy is in!
Well that was one picture from multiple attempts lol

Even being closer it’s about 23.9 with the odd cooler patch.

Canopy temp is 26.5c atm

Although I just read a canopy temp of 28-30 works best :/ Gonna be more expensive just trying to heat the room xD
 

CheGueVapo

Well-Known Member
28-30 works best
Thats relatively untrue, because thats the absolute optimum for "enzymatic-activietis" in general. Just "half-truism".
But we want to know the optimum of photosynthesis regarding temperature...
that point is not between 28 and 30°C but just 25°C.

The metabolic for photosynthesic-rate which leads to growth per day almost reaches it's max already at 25°C....
From 21°C to 25°C the gain is BIG... you would think... but in fact it's little!
From 25°C to 28°C there's only more benefit with CO²... you dont need that high temperatures without CO², it's pointless.

Your canopy at 26,5°C is great....

The seedling beeing at 23,9°Cfar lower to the lights is juststill good....

Check this graph....
optimum-temperature-affecting-photosynthesis-300x206.jpg
CO² shifts it higher!

One thing that grows best at 28-30°C is aspergillus flavus... check out this:
Growth-of-Aspergillus-flavus-at-the-different-temperatures-on-potato-dextrose-agar-media.png
Fastest grow at @30°C :(, when you have condensations and that high temp, it it is able to colonize within HOURS, still it's good growing at 25°C... to avoid it: go down nights around 20°C because that low it would need 2 days to grow a colony in first place.

The more your lights heat the ambient and the LST, the greater is the evaporation and the higher is the drop when the lights go out,... the risk to reach the dew point because the humidity beeing high down there at the stems inner surface during that drop rises the risk of mold ... the temps drive it grow easily too, if higher than 20-21 at nights after these condensations happened. :/ You want them to be cold at least and get them chance to evap during the night before a fungus grows in it, especially not aspergillus.

23-25°C is resulting in fine metabolic rate for photosynthesis, with relatively "medium" evaporation, that goes well with high intensities (1000µmol)... I don't recommend higher. Except you know how to avoid these problems with your monster buds in the end... ;)

You can aim for 25-28°C... but i think 28-30°C is way too high.... and I think wasting energy for heating the LST higher than 25°C is not worth it, does not gain. Only gets you into trouble with these fungusses of all kind... especially in the last 2 weeks.... thats temps easily knocks yourself out!

With days around 25°C and nights 20°C you have good metabolism, good DIF compact dense grow.... you can aim alittle higher days temperature in the early flowering and higher intense light, but be carefully in the final phase.... because of the fungus, keeping light intensities and temperatures "lower" (days not higher than 25 and nights not higher than 20) makes it easier to control the humidity due to lower evaporation and lower risks of reaching the dew points in particular spots that are at high danger the bigger the bud grew.
 
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CheGueVapo

Well-Known Member
You might say... there is hundred thousands of fungus, some like colder, why focusing this one...

I have reasons, of these hundred of thousands known fungus in the world, only few hundred are a big danger to human, and of those only some share our place of living.

Aspergillus flavus does share our place of living... it may hide in the kitchen, in the cellar or behind your good looking wallpapers and therefore could have a good chance to invade your growroom. The spores are everywhere around us! But it's so little that our imune-system can stop it from getting invasive.
Aspergillus flavus is one of the most severe threat fungus to humans world wide, if you catch it and it goes systemic, enters your body, you're high likely almost dead, it kills your lung.

Aspergillus spores getting danger to the lung when inhaled, thats makes it a special threat for weed growers... well, since, most of us, "inhale", what else.

THEY GROW BEST ON ROTTING PLANT PARTS!
Thats why you must remove leafs that fall down, lay in between and rott.... these could drive infestations of aspergillus in the first place, highening the spore counts.

It can happen you experience mold when succeeding higher with your yielding grow skills.... most of them are NO real danger in fact, still you dont know, frack, so you must make sure at all cost, that whatever it is you 'cut away' ;), at least let it not be aspergillus, because THESE spores colonys DO FUCK UP THE HOLE HARVEST.... they are killers!
AdobeStock_207449065_bearb_web.jpg
220px-Air_crescent_sign.jpg

Invasive aspergillosis is associated with significant mortality, with a rate of 30-95%.
Chronic necrotizing Aspergillus pneumonia has a reported mortality rate of 10-40%, but rates as high as 100% have been noted because it often remains unrecognized for prolonged periods.
Source Medscape!

When you think about going round 30°C days and 25°C nights.... face aspergillus threat! Just face it, because it grows perfectly round the clock andd dominates others, the first moment you have a condensation, aspergillus gets his share! Within hours the colonies might reach your thumbnails-size... uuuh!
You wanna be tough, better do what you can, so beat it! But you wanna be bad ;=)
It doesn't matter whos wrong or right (with the temperature-optimum)
Just beat it (aspergillus).
lol, song fits so well... if you go higher temps, higher evap, get the monster-buds and they start rotting stems, while you dont see it, you dont "beat it"... but you go "confronting" it quickly. ;)

With lower temps, if you catch mold, it's high likely something different than aspergillus, thats the trick, others dominate at lower temps, and they grow relatively slow compared to spergillus. Trichoderma or shits... "noble mold" lol... but asp @ 30°c is a racer! It can quickly spread and eat once it started populating your grow room. The circulating ventilation then makes it WORSE on top of it all! Thats the moment to realize, you fucked up completely ;)

I care just your safety more than your yield.... whats 1-2% more yield compared to that risk catching it. Think about it! Most of the time growers cut away double the 1-2% yield gain in form of rotten budparts :rolleyes: True story!
 
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Nutty sKunK

Well-Known Member
You might say... there is hundred thousands of fungus, some like colder, why focusing this one...

I have reasons, of these hundred of thousands known fungus in the world, only few hundred are a big danger to human, and of those only some share our place of living.

Aspergillus flavus does share our place of living... it may hide in the kitchen, in the cellar or behind your good looking wallpapers and therefore could have a good chance to invade your growroom. The spores are everywhere around us! But it's so little that our imune-system can stop it from getting invasive.
Aspergillus flavus is one of the most severe threat fungus to humans world wide, if you catch it and it goes systemic, enters your body, you're high likely almost dead, it kills your lung.

Aspergillus spores getting danger to the lung when inhaled, thats makes it a special threat for weed growers... well, since, most of us, "inhale", what else.

THEY GROW BEST ON ROTTING PLANT PARTS!
Thats why you must remove leafs that fall down, lay in between and rott.... these could drive infestations of aspergillus in the first place, highening the spore counts.

It can happen you experience mold when succeeding higher with your yielding grow skills.... most of them are NO real danger in fact, still you dont know, frack, so you must make sure at all cost, that whatever it is you 'cut away' ;), at least let it not be aspergillus, because THESE spores colonys DO FUCK UP THE HOLE HARVEST.... they are killers!
View attachment 5002945
View attachment 5002946


Source Medscape!

When you think about going round 30°C days and 25°C nights.... face aspergillus threat! Just face it, because it grows perfectly round the clock andd dominates others, the first moment you have a condensation, aspergillus gets his share! Within hours the colonies might reach your thumbnails-size... uuuh!
You wanna be tough, better do what you can, so beat it! But you wanna be bad ;=)
It doesn't matter whos wrong or right (with the temperature-optimum)
Just beat it (aspergillus).
lol, song fits so well... if you go higher temps, higher evap, get the monster-buds and they start rotting stems, while you dont see it, you dont "beat it"... but you go "confronting" it quickly. ;)

With lower temps, if you catch mold, it's high likely something different than aspergillus, thats the trick, others dominate at lower temps, and they grow relatively slow compared to spergillus. Trichoderma or shits... "noble mold" lol... but asp @ 30°c is a racer! It can quickly spread and eat once it started populating your grow room. The circulating ventilation then makes it WORSE on top of it all! Thats the moment to realize, you fucked up completely ;)

I care just your safety more than your yield.... whats 1-2% more yield compared to that risk catching it. Think about it! Most of the time growers cut away double the 1-2% yield gain in form of rotten budparts :rolleyes: True story!
Good to know! Shits not to be messed with.

1ft above canopy is 26.3

in and around the foliage it’s around 24c

Nights are about 20-21 which will get cooler as will the days as the weather draws in.

Humidity ranges 45-58% I could do with lowering that a touch which is no issue. Buds are just starting to properly get going now.

Ive upped my calmag to nearer the highest recommend dose by the manufacturer so have a little more wriggle room. Going to take a few days to notice any reduction in ca def.
 

CheGueVapo

Well-Known Member
Time for HEPA filters on the intake air!
You think thats enough? Think it to the end!
What about a truely hermeticly sealed grow-room with an Air-lock with decontamination for yourself.... :lol:
Spores are in your clothes, man!

When the terrain-conditions are good it dont matter your main intake air sucked 99% of the spores... somehow 1% got in... and they grow in the terrain-conditions well exponentially.

Tents have chinks at the zippers... thats enough... the exhaust vent sucks spores from there!

You want a HEPA filter and UV-desinfecting the inlet air, but that alone sincerly is not enough.... so forget it if you are no big-scale producer who can afford all that plus air-locks and decontamination for the staff ;)

It doesn't work for homegrow! :rolleyes:

You would need "bsl 4"... lol, bio safety level 4 zone for your grow..... like dealing with marburg-virusses ;)
Forget that.

Manage your "terrain" for the fungus to not promote them... that WORKS best! Proof of concept. ;)
 
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LeastExpectedGrower

Well-Known Member
Geez. Seriously, for all the weed that's been produced in the world for centuries and the millions of home grows out there if this was an actual issue not only would we all know about it, but your friends would all be dead or in the ICU from fungal infections. Just more bloviating.
 

CheGueVapo

Well-Known Member
Geez. Seriously, for all the weed that's been produced in the world for centuries and the millions of home grows out there if this was an actual issue not only would we all know about it, but your friends would all be dead or in the ICU from fungal infections. Just more bloviating.
You ignoring it, makes you not face the matter, makes you not realize that it IS a problem.
You are ignorant!

While it's been shown that there have been no overdoses from medicinal cannabis in the 33 states that have legalized its use, there have been documented cases of medicinal cannabis patients who have died from aspergillosis, a condition caused by inhaling Aspergillus spores.

Go on ignoring it calling it "bloviating".. until so many die because you ignored it, that it counts higher and higher and higher, like you stupid americans always do... ignore it until it FUCKS you! You must be FUCKED first to LEARN FROM IT! You dont need no education, you NEED the high death counts... then you start looking at it! You experience the shit, refusing to educate yourself... good boy, you're so clever :D

Try to spend your time with something useful, like education! Thats makes you stop beeing such a stupid overemphasizing moron fucking up everything!

Who tests for Aspergillus?
The following states require testing cannabis for Aspergillus (updated June 2020):

  • Alaska – A. flavus, A. fumigatus, and A. niger
  • California – A. flavus, A. fumigatus, A. niger, and A. terreus
  • Michigan – A. flavus, A. fumigatus, A. niger, and A. terreus
  • Nevada – A. flavus, A. fumigatus, A. niger, and A. terreus
  • New York – Aspergillus species
At least your gov is smarter than YOU homegrow-moron ignoring it completely.

Go on! You know better! Sig!
 
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LeastExpectedGrower

Well-Known Member
You ignoring it, makes you not face the matter, makes you not realize that it IS a problem.
You are ignorant!



Go on ignoring it calling it "bloviating".. until so many die because you ignored it, that it counts higher and higher and higher, like you stupid americans always do... ignore it until it FUCKS you!

Try to spend your time with something useful, like education! Thats makes you stop beeing such a stupid overemphasizing moron!
Trust me. Of all the posters here, my eyes slip through your words faster than greased lighting. You're so full of shit all the time you're a walking billboard for dunning kruger. Though keep up with your ridiculous ad hominem attacks on people because they happen to live in countries you don't like. That comes across as totally above board.

Hands up everyone, how many of your family and friends have died from aspergillus in your cannabis? Anyone? Anyone?
 

Three Berries

Well-Known Member
I've never had a fungus issue. If I did I'm sure my friend Borax sand H2O2 would take care of it. I don't take any special precautions other than new soil each time. I now have a too high humidity when lights off condition with my flower room. I need to add a small exhaust fan controlled by a humidity controller.

I could actually just run it on a timer as it's only a problem at about 10 hours into the darkness.

The humidity got up to 88% last night before the lights drove the heat up enough for exhaust. 83F and 88% at the peak lights on for about a 1/2 hour. What are my leaves thinking of that? High humidity and high light?
 

CheGueVapo

Well-Known Member
You're so full of shit all the time you're a walking billboard for dunning kruger.
:wall: :wall: :wall:
As described by social psychologists David Dunning and Justin Kruger, the bias results from an internal illusion in people of low ability and from an external misperception in people of high ability; that is, "the miscalibration of the incompetent stems from an error about the self, whereas the miscalibration of the highly competent stems from an error about others".
:clap::clap::clap:
You dont see that you are not competent, but me.... ;) Im competent in the matter we are arguing.

"You're so full of shit all the time you're a walking billboard for dunning kruger." Check the mirror! :rolleyes::lol:
 
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