Ditch the glass/aircool

Flaming Pie

Well-Known Member
If your light is too close it blinds the plants. When your plants lose the ability to see they can no longer play contact sports. Since they cannot play sports, they stop working out and become weak and lazy.

This all translates to less bud.
 

kmog33

Well-Known Member
So from your latest posts it seems that your improved situation might not have anything to do with glass. More that you just had a crap setup with poor light coverage.

If you're right, great, but science tends to claim otherwise from everything i've read. Have you actually attempted a side by side study to see if it was the glass that was the issue, or your hood and as such light coverage. Seems daft to make the statements you arte making when ignoring such important variables.

going at this from another angle. The idea of light being absorbed by glass, it is not a new notion, and there have been tests, and studies, across all fields whether it cannabis or otherwise. It would seem VERY odd that despite knwoing of this possbile issue for so long, noone else would have attempted what you state, noticed the difference, and then "published" the results in a scientific manner. But no, despite this knowledge, for some strange reason, growers continue to work on the basis of more light is better, and the closer the light (taking into account the coverage and temperatures, and inverse square law) the better.

Don't you just find it a bit odd that we have known about this for so many may years, yet for some reason we continue to do things counter to your ideas, and that people continue to get better yields using methods contrary to your opinion?

Hell, have you even run this in any kind of scientific manner? From your OP is seems that you didn't even use the same genetics when making your comparisson, simply that a haze turned out better than an indica. By this i mean i havn't read anything from you to even suggest that this is a better method. It sounds little different from say "i put a nail in the stem of this plant and it gave me a much better yield than that random plant i grew 12 month back. It must be the nail, i can't think of any other reason. That is not how one arrives at a scientific conclusion.
he stated he's not even growing marijuana so this may not even be pertinent at all to any of us on the forum. Leds started working better for mj when someone realized bud like different red spectrum than others plants and companies starts making light spectrums specifically with medical mj in mind. So this is kind of getting more and more off point.

Sent from my LG-LS980 using Rollitup mobile app
 

LetsGetCritical

Well-Known Member
I think 'swim' does grow marijuana. I think maybe his 400w ballast or lamp was half fucked or something and then he tried the new 250 watt setup and did much better. I don't know , its like 3am here
 

LetsGetCritical

Well-Known Member
If your light is too close it blinds the plants. When your plants lose the ability to see they can no longer play contact sports. Since they cannot play sports, they stop working out and become weak and lazy.

This all translates to less bud.
put glasses on them problem solvered
 

SnapsProvolone

Well-Known Member
The glass does block some light transmission. Thus the high performance of DE lamps. Does the glass block all spectrum equally? Probably not. In a sealed AC room with bare vertical bulbs or hoods sans lens you will have more lumens thus more growth potential.
 

hydrogreen65

Well-Known Member
Should be easy enough to solve.
Anyone have a light meter who would be willing to do a lil test?
Place a meter at a set point, take reading. Then remove glass and take reading.
 

TexasHank

Well-Known Member
How about this one...

How many growers on RIU grow with a couple lights out of their closet and keep the light over their plants about 12-18 inches with glass cover??

Most

How many large warehouse ops do you see with lights 12-14 inches over the plants and glass?

Try to find one.

Don't you think if glass and close to the plants was the way to go that it would be something you see outside of the closet growing world?

The idea that more light is better... cover the light in glass and move the lights as close as possible... That is a forum thing..
 

TexasHank

Well-Known Member
I think 'swim' does grow marijuana. I think maybe his 400w ballast or lamp was half fucked or something and then he tried the new 250 watt setup and did much better. I don't know , its like 3am here
I've never grown with 250s.. I have used a few 400w in the past though.. Little closet setups.

I like 600s until you start getting into something very big.

What I am saying is that I do not think that MJ plants need much light to really do well. Closet growers overdo it..

Forum growers, I believe, do not really understand how MJ plants and light interact.. They run on thoughts like "more light is better". There is bit more to it..

If you just do stuff because that is what you see on forums and that is what folks have always done... you'll end up doing lots of stuff that is not really optimal.
 

TexasHank

Well-Known Member
If your light is too close it blinds the plants. When your plants lose the ability to see they can no longer play contact sports. Since they cannot play sports, they stop working out and become weak and lazy.

This all translates to less bud.
When I was a kid a plant went outside and played ball... Plants today are weak.
 

SnapsProvolone

Well-Known Member
The whole air cooling thing is a good way for illegal grow ops to cope with heat without a ten ton low ambient air conditioner. It helps a closet or tent grower. It's ludricrous on a large scale to use air cooled hoods. Who wants to clean glass in 400 hoods anyways...
 

TexasHank

Well-Known Member
The whole air cooling thing is a good way for illegal grow ops to cope with heat without a ten ton low ambient air conditioner. It helps a closet or tent grower. It's ludricrous on a large scale to use air cooled hoods. Who wants to clean glass in 400 hoods anyways...
If it actually improved growing results.. large scale ops would use glass.. you can always find a way around a problem like dirty glass if it works..

But it doesn't, so they don't bother.

A ten ton air conditioner is not necessary to cool a smaller grow... A 3600 watt grow ... wall to wall.. no aircooled hoods.. in a state with 110+ deg summer days and 95 degree nights can be cooled with about 12-14k btu.. no problem.

I agree though.. glass has its uses.. but it is just a solution to a problem in an unideal situation..
if it is your only choice, sure.. better choices are out there though.
 

SnapsProvolone

Well-Known Member
If it actually improved growing results.. large scale ops would use glass.. you can always find a way around a problem like dirty glass if it works..

But it doesn't, so they don't bother.

A ten ton air conditioner is not necessary to cool a smaller grow... A 3600 watt grow ... wall to wall.. no aircooled hoods.. in a state with 110+ deg summer days and 95 degree nights can be cooled with about 12-14k btu.. no problem.
I was talking about 30kW.

I'm not arguing, less glass equals more lumens and thus greater potential for growth.
 

cat of curiosity

Well-Known Member
if you do this will all the other breakthroughs you're indoor grow will blow up like a tropical jungle. make sure you defoliate before raising the lights.

and if you really really want em to go nuts, give them less fertilizer. or better yet, none...
 

Sweeve

Active Member
ok bro im gonna stop ur rant right here....i have a an air cooled 1000w HPS on one side of my 10x5x7 tent to finish the plants and make them fatter and i have a 600w HPS uncooled on the other side to induce budding.....i switch them bc i will not get the same yield from the 600w that i can get with the 1000w....the 600w is great bc they come from a 16 bulb T5 veg op with 20% red and 80% spectrum and it really 'fluffs' the bitches up.....but this rant about GLASS is ridiculous.....u may lose a little lumens with glass but not anywhere near enough to PAY me to take it off and expose the ridiculous heat a 1000w throws out to my girls finishing up....so u may go ahead a plague this thread with ur ideas....i mean that bc u dont grow...or ur too chicken shit to say u do, whatever its not the point.....but take it from me, a grower, i want my 1000w with glass and aircooled....bc it YIELDS MORE.....anybody with me on this or am i the only one thats not going to encourage him
 

TexasHank

Well-Known Member
So from your latest posts it seems that your improved situation might not have anything to do with glass. More that you just had a crap setup with poor light coverage.
Nope.. my setup has been pretty good for a long time actually.. I used to share it on here a lot, but, I don't do that anymore. nothing changed except that I took out the glass and raised the lights up a bit.

Non MJ Botany is my day job .. mj plants in my care don't get much attention.. they don't need it.. they grow themselves with very little care on a small scale.
3600 watts flowering gets 2 visits a wk.. maybe 30 mins each. Doesn't take much.

Don't you just find it a bit odd that we have known about this for so many may years, yet for some reason we continue to do things counter to your ideas, and that people continue to get better yields using methods contrary to your opinion?
Ha! No.. I am not surprised actually.

You can improve your yields with many poor pieces in place.. you just won't get further than your weakest link... air, water, nutrients, light... cut one out.. they all are unable to contribute to growth..

People think more along the lines of "more light is better".. When actually, there is a much more complex relationship between your plants and light than "more is better"..

So, no.. I don't find it odd anymore.. It's the norm on mj forums, grow dvds/mags, etc..
Misconceptions, misunderstanding relationships.. I've come to expect it.. not find it odd..

Seems daft to make the statements you arte making when ignoring such important variables.
Yeah, daft.. You haven't changed one bit, have you? :blsmoke:



It would seem VERY odd that despite knwoing of this possbile issue for so long, noone else would have attempted what you state, noticed the difference, and then "published" the results in a scientific manner.
The fact that it is not "old news" says nothing.. This hobby has more confused ass backwards traditions than any other. Truly.

Even if it WAS published in a scientific manner, Forum growers (98%) wouldn't be reading it anyway.. they don't read that stuff.. they read threads..
One thing you can NEVER argue is that people on mj forums would have figured it out by now if it worked better. OR, that people on mj forums wouldn't do something because it doesn't really work.. That's not how it goes down on MJ growing forums.

Losing some light to absorption is such a small piece of the puzzle. I don't think that the loss to the glass has nearly as much to do with what actually happens when you take the glass off and raise lights.. You have an entirely different situation.. with different light intensities, different spread.
Different temps, light levels, spread of light.. it all changes what the plant experiences.. how happy the plant is..
That is what is more important than having a TON of light.. is the plant happy?

From what I am seeing.. The plant is happier with the bulb up higher. I think it is happier with the spread and light intensity that you get going bare bulb and up higher. Higher than you see in almost all closet growers grows..

Checkout a non mj growing operation with artificial lighting.. No one is hovering lights a foot over the plant.. because there is not a culture of misunderstanding in that world like there is in the mj growing world.

You have people who aren't REALLY that into botany suddenly playing pro botanist.. this breeds all sorts of nonsense..

Also.. the plant grows so easy and it is such profitable and appreciated plant that you get people who in their local market become MJ heroes!.. You grow some bud that hasn't been tumbled, shaved and shipped and people say "You grow the BEST weed"...
and an inflated ego is born..

That's my theory, anyway..
 
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