DIY with Quantum Boards

shadow_moose

shadow_moose

Well-Known Member
Nutes and Nugs said:
SInce we're on the subject of distance to canopy... after mounting my panels by habit of CFL's
I put the panels a few inches away from my plants.
A few days later I noticed the tops were turning light green, not white but saw this could be the beginning of light stress.
I raised the panels and dimmed them back to around 30 watts per panel. Had them around 35watts per.

They seemed a bit better so I raised the panels again, now theyre about 12 inches from the tops but
I'm still seeing the light green effect on the original plants plus some others.
I have 3 SSDD which seem to be the worst. They are from seed so I'm concidering their DNA to be
raised with a lot of nutes. I try to make my soil happy and not use nutes but I think these have a deficincy and not light burn.
Maybe a little of both.
Other plants are 3 Jabba's Stash a Star Fighter X LBL and a Daisy May.

Any input is appreciated.

View attachment 3900589

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View attachment 3900591

I also had a old Pelonis Disk furnace laying around I used for a heat source with a temperature control from ebay.
It can also be used as a cool control if you make the temp in the top box higher then the box below it.
Found out later the furnace wasnt turning on, guess it had too much tilt and triggered the safety switch.
Working good now that it's level.

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View attachment 3900594
Click to expand...
Classic nitrogen def bud.
 
ChaosHunter

ChaosHunter

Well-Known Member
Nutes and Nugs said:
SInce we're on the subject of distance to canopy... after mounting my panels by habit of CFL's
I put the panels a few inches away from my plants.
A few days later I noticed the tops were turning light green, not white but saw this could be the beginning of light stress.
I raised the panels and dimmed them back to around 30 watts per panel. Had them around 35watts per.

They seemed a bit better so I raised the panels again, now theyre about 12 inches from the tops but
I'm still seeing the light green effect on the original plants plus some others.
I have 3 SSDD which seem to be the worst. They are from seed so I'm concidering their DNA to be
raised with a lot of nutes. I try to make my soil happy and not use nutes but I think these have a deficincy and not light burn.
Maybe a little of both.
Other plants are 3 Jabba's Stash a Star Fighter X LBL and a Daisy May.

Any input is appreciated.

View attachment 3900589

View attachment 3900590
View attachment 3900591

I also had a old Pelonis Disk furnace laying around I used for a heat source with a temperature control from ebay.
It can also be used as a cool control if you make the temp in the top box higher then the box below it.
Found out later the furnace wasnt turning on, guess it had too much tilt and triggered the safety switch.
Working good now that it's level.

View attachment 3900593

View attachment 3900594
Click to expand...
Could even be some MagCal diff also. better light, better growth rate =mor magcal
 
BobCajun

BobCajun

Well-Known Member
Yeah it's almost certainly bleaching. That's the one major drawback with LEDs, very easy to bleach/burn plants. They need to be farther away than you might expect and less intensity is required than you might think. I get tip bleaching with 30w/sq ft of 100w replacement bulbs, just not as severe as with the high bays.

One tip I have is to use LED for all stages, rather than starting with, say, halides or fluorescent. That's how I avoided the worst burning. Letting them grow close to 14w LED bulbs is not much different from a couple feet away from high wattage COBs.
 
dro-man80

dro-man80

Well-Known Member
NapalmD said:
I'm sitting here baked out of my skull reading this and got all paranoid second guessing myself like, could I have bleached the tips and not noticed?! When I know darn well I didn't :lol: You just made me open my tent 2.5 hrs past lights out to snap a few pics to make sure :eyesmoke:

I'm running each board at approximately 60w each since day 31 and had them between 1-3" away from the boards the whole grow so far and just raised the boards a link on the chain the other day. Which is where I'll run them from now on.
Looks good from my backyard 8)

View attachment 3900502 View attachment 3900503

Note to self : tie these bitches up ASAP :o

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Really impressive man,,really..Appreciate the sharing..
great job again brother,,,awesome watching growers killing it:clap::peace::bigjoint:
 
greg nr

greg nr

Well-Known Member
ttystikk said:
It's generally called 'Cal-Mag', and it is NOT a basic nutrient salt- rather it's two of them; calcium nitrate and magnesium nitrate. In other words, what is really greening up your plants when you use it... Is nitrogen.
Click to expand...
The product called cal-mag is 2-0-0, so it has some N as well. Just a bit, but it's there.
 
zep_lover

zep_lover

Well-Known Member
Nutes and Nugs said:
SInce we're on the subject of distance to canopy... after mounting my panels by habit of CFL's
I put the panels a few inches away from my plants.
A few days later I noticed the tops were turning light green, not white but saw this could be the beginning of light stress.
I raised the panels and dimmed them back to around 30 watts per panel. Had them around 35watts per.

They seemed a bit better so I raised the panels again, now theyre about 12 inches from the tops but
I'm still seeing the light green effect on the original plants plus some others.
I have 3 SSDD which seem to be the worst. They are from seed so I'm concidering their DNA to be
raised with a lot of nutes. I try to make my soil happy and not use nutes but I think these have a deficincy and not light burn.
Maybe a little of both.
Other plants are 3 Jabba's Stash a Star Fighter X LBL and a Daisy May.

Any input is appreciated.

View attachment 3900589

View attachment 3900590
View attachment 3900591

I also had a old Pelonis Disk furnace laying around I used for a heat source with a temperature control from ebay.
It can also be used as a cool control if you make the temp in the top box higher then the box below it.
Found out later the furnace wasnt turning on, guess it had too much tilt and triggered the safety switch.
Working good now that it's level.

View attachment 3900593

View attachment 3900594
Click to expand...
that looks like a mag deficiency .do a foliar feeding with epsom salt water and should be good in a few days.
 
guy_incognito251

guy_incognito251

Well-Known Member
robincnn said:
added some reds around my QB304 board
1 is QB304
2 is QB304 + some Cree XPE660 + 730
3 is CLU048 1818 90 CRI
4 is QB304 + some Cree XPE660
Click to expand...
How many XPEs and at what current compared to the QB did you use to get those results?

Been thinking of adding reds to some 80 CRI 3000K led strips (lm561b+) but it is hard to tell how many and how hard to drive them.
 
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