DIY with Quantum Boards

numberfour

numberfour

Well-Known Member
Currently entered into one of the 12/12 FS solo cup comps in the LED section, as well as my entry I've a few other plants under the 65w HLG QB in a 60 x 90cm tent and loving the results.

Little accident from a few years ago, Lightsaber (Exotic Genetix) x Sunshine Daydream (Bodhi)
lightsaber x ssdd - Copy.jpg

Gifted these seeds a while back, GG#4 x Nepoji (Nepali Og x Goji OG F3)
#2
gg4 x nepoji #2 - Copy.jpg

#4
gg4 x nepoji #4 - Copy.jpg
 
O

oill

Well-Known Member
Hi guys,

I have seen super slow growth under my hlg's and wondering if anyone can help. It's a new set up, so trying to get used to it. Not grown in just rockwool before.

Roots look nice n white in the bottom

Ph 5.2
Ec 1.1
Qbs at 1600ma
Distance 16 inches
Rh 60‰ ish
Watering every 4-5days

Growth is just way slower than I was expecting.
 

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PSUAGRO.

PSUAGRO.

Well-Known Member
oill said:
Hi guys,

I have seen super slow growth under my hlg's and wondering if anyone can help. It's a new set up, so trying to get used to it. Not grown in just rockwool before.

Roots look nice n white in the bottom

Ph 5.2
Ec 1.1
Qbs at 1600ma
Distance 16 inches
Rh 60‰ ish
Watering every 4-5days

Growth is just way slower than I was expecting.
Click to expand...
you're New to rockwool? Makes me think that's the issue==watering schedule needs a tweak possibly
 
M

mduke

Well-Known Member
oill said:
Hi guys,

I have seen super slow growth under my hlg's and wondering if anyone can help. It's a new set up, so trying to get used to it. Not grown in just rockwool before.

Roots look nice n white in the bottom

Ph 5.2
Ec 1.1
Qbs at 1600ma
Distance 16 inches
Rh 60‰ ish
Watering every 4-5days

Growth is just way slower than I was expecting.
Click to expand...
your ph is too low, aim for 5.8. And next time dont put the blocks on the slabs until after you have a decent root system. In fact i'd take the slabs off if you can. the rockwool slabs wicks away the moisture from the cubes where all the roots are. So you have a dry rootzone that gets watered too infrequently. Id guess the ph and EC are way off in the blocks from this combo.

So...
1. adjust ph to 5.8
2. take off slabs
3. start watering every 2-3 days (which will work nicely just watering the blocks with no slabs)

as the plants grow and the slabs become necessary you want to be watering at least once a day. Check out grodans website, they have good info there.
 
O

oill

Well-Known Member
mduke said:
your ph is too low, aim for 5.8. And next time dont put the blocks on the slabs until after you have a decent root system. In fact i'd take the slabs off if you can. the rockwool slabs wicks away the moisture from the cubes where all the roots are. So you have a dry rootzone that gets watered too infrequently. Id guess the ph and EC are way off in the blocks from this combo.

So...
1. adjust ph to 5.8
2. take off slabs
3. start watering every 2-3 days (which will work nicely just watering the blocks with no slabs)

as the plants grow and the slabs become necessary you want to be watering at least once a day. Check out grodans website, they have good info there.
Click to expand...
Thanks for tips. The nutes atami, say that they should be 5.2 - 5.5, but that did seem low to me. Will do a flush at 5.8.

As for the roots, I would say that 80% coverage on the bottom of the blocks before I put them on the slabs 3days ago.

I will see if they have rooted in, and remove if they havent
 
F

frigginwizard

Well-Known Member
oill said:
Thanks for tips. The nutes atami, say that they should be 5.2 - 5.5, but that did seem low to me. Will do a flush at 5.8.

As for the roots, I would say that 80% coverage on the bottom of the blocks before I put them on the slabs 3days ago.

I will see if they have rooted in, and remove if they havent
Click to expand...
Id back those lights off a fair bit as well, at least another foot for now.
 
Budzbuddha

Budzbuddha

Well-Known Member
Quantum Bud Porn --------

Have a few girls finishing up in the last week or two . Under 3000k / 3500k .
All soil containers with Dr. Earth nutes / kelp solution .
Tap Water @6.5 ( 6.7 during flower )
12/12 cycle
Peat mix medium

GSG
Lamb's Bread
Honey Glue
KryptoKush

Since they were pretty much grown together the danky smells sort of pool together so I won't really know it's profile until each is cured up. I am anxious to try lambs bread since I heard its a strong Sativa. Honey Glue is the most trich heavy of the four.

Been waiting to get these cut so I can start a couple of more ... Maybe Lemon Venom or The Deputy ( Greenpoint seeds ).

Thanks @robincnn and @Stephenj37826 for your incredible products.


image.jpeg image.jpeg image.jpeg image.jpeg
 
pop22

pop22

Well-Known Member
PH WAY too low5.6 should be the absolute minimum and I find keeping withing 6.0 - 6.2 be optimal you might want to raise the light a bit also

oill said:
Hi guys,

I have seen super slow growth under my hlg's and wondering if anyone can help. It's a new set up, so trying to get used to it. Not grown in just rockwool before.

Roots look nice n white in the bottom

Ph 5.2
Ec 1.1
Qbs at 1600ma
Distance 16 inches
Rh 60‰ ish
Watering every 4-5days

Growth is just way slower than I was expecting.
Click to expand...
 
O

oill

Well-Known Member
pop22 said:
PH WAY too low5.6 should be the absolute minimum and I find keeping withing 6.0 - 6.2 be optimal you might want to raise the light a bit also
Click to expand...
Did a flush at 5.8 2 days ago and they are starting to pray and look a lot healthier. Ec is at 0.8, so think that needs to come up too. Whereabouts would you expect it to b at this stage?
 
P

pfawcett1

Well-Known Member
pop22 said:
I'm using it for the exact reason that its an all in one nutrient, no playing mad scientist mixing 47 bottles of crap, feeding schedules to try to follow, its a damned plant, keep it simple! And I believe this company is another started by guys here on RIU.

And As I start my plants always in organic soil, I started feeding about week three, and will feed right till the day I chop.
Click to expand...
Thanks Pop, just ordered free sample to try.
 
K

keepsake

Well-Known Member
Yeah growerslight said this "We don't sell the potentiometers however you can use any 100k pot and and couple it with any 10k resistor. They can be found on Amazon."

Can you link me to exactly what I need to buy? I don't want to buy the wrong thing. Thanks in advance. This forum is awesome.
 
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