What's new
  • Happy Birthday ICMag! Been 20 years since Gypsy Nirvana created the forum! We are celebrating with a 4/20 Giveaway and by launching a new Patreon tier called "420club". You can read more here.
  • Important notice: ICMag's T.O.U. has been updated. Please review it here. For your convenience, it is also available in the main forum menu, under 'Quick Links"!

Analog's LED

analogue

Member
I've grown for a long time at 50 ppm Mg. I've found it a pretty solid number. Have previously considered 45 ppm Mg to be low. Just started at 4:1 Ca to Mg ratio - I had been testing at 135 ppm and 45 ppm Ca:Mg (3:1). My sense is that a 3:1 Ca: Mg ratio with coco is golden.

It will be interesting to see what takes place.

Media pH is currently @ 6.2 pH. A pH of 6.0 is the goal, sometimes actual pH is slightly more or less.

Brix is usually at 14 :tiphat:.

I don't bother with higher potassium levels anymore.
 

medmaker420

The Aardvarks LED Grow Show
Veteran
great info analogue

I have noticed that with leds and how they grow cooler the watering / watering is fewer and far between so I tend to want to add more so they don't yellow on me. I agree on the less is best strategy though and try and find the minimum needed especially with veg.
 

rives

Inveterate Tinkerer
Mentor
ICMag Donor
Veteran
My sense is that a 3:1 Ca: Mg ratio with coco is golden.

If my recent experience with Veg+Bloom is any indicator, this is right on the nose. My last completed run was with V+B (RO formula) at this ratio, and it was both painless and productive.
 

analogue

Member
Looks good, Analogue. It's interesting to me that your girls are doing that well with the Mg @ 40ppm. I seem to need to be up around 50ppm minimum in order to keep the plants from looking like some weird coleus hybrid, and leds seem to accentuate the need over other lighting.

I'm watching them. Not trying to obsess (are they too close, are they far enough away, is there too much wind or not enough...) :whee:.

They all get a little extra chelated iron.

Well during the day today all four BubbleNumb (Bubblegum x Gold Kush XXX) seeds shot Up and Out. Six days from dropping them into wet coco coir.

:blowbubbles:.
 

PetFlora

Well-known member
ICMag Donor
Veteran
On another popular site there are a couple excellent LED DIY threads.

It seems the hot ratio is 1:2:2 CW/NW/WW using multiple small heatsinks ( ~ 12 X 12) using 1w leds
 

analogue

Member
Next year I will make some more light bars. I feel good where I am right now. But in the future I won't use permanent adhesiv e. The concept of using a blend of whites is intriguing because of their higher efficiencies.

-

The final Brix reading for the Harle-Tsu plant was 14.5. That's a lot of plant sugar. Chlorphyll is doing its job.

Back to 50 ppm for Mg. I'm still looking at a base saturation of Ca to be 3 times Mg.

-

I made some canna-butter using clarified butter and a LED harvest (buds and trim). Works very well, tastes great. I put the ground cannabis and clarified butter in a glass jar and simmered it in a water bath, then filtered it (pressure assisted) through screenprint mesh. I did do a hot water extraction for the resulting morass of green and got almost nothing on the second pass.
 

Attachments

  • P1000514.JPG
    P1000514.JPG
    74.3 KB · Views: 12
  • P1000515.JPG
    P1000515.JPG
    80.1 KB · Views: 21
  • P1000516.JPG
    P1000516.JPG
    67.8 KB · Views: 12
  • P1000524.JPG
    P1000524.JPG
    108.3 KB · Views: 16
  • P1000525.JPG
    P1000525.JPG
    62.5 KB · Views: 13

MaynardG_Krebs

Active member
Veteran
Next year I will make some more light bars. I feel good where I am right now. But in the future I won't use permanent adhesiv e. The concept of using a blend of whites is intriguing because of their higher efficiencies.

-

The final Brix reading for the Harle-Tsu plant was 14.5. That's a lot of plant sugar. Chlorphyll is doing its job.

Back to 50 ppm for Mg. I'm still looking at a base saturation of Ca to be 3 times Mg.

-

I made some canna-butter using clarified butter and a LED harvest (buds and trim). Works very well, tastes great. I put the ground cannabis and clarified butter in a glass jar and simmered it in a water bath, then filtered it (pressure assisted) through screenprint mesh. I did do a hot water extraction for the resulting morass of green and got almost nothing on the second pass.

Curious about what kind of sample you take from the plant to obtain your brix reading? I have a refractometer for my brewery.. never thought about taking any kind of readings from my plants...

mgk :tiphat:
 

analogue

Member
Curious about what kind of sample you take from the plant to obtain your brix reading? I have a refractometer for my brewery.. never thought about taking any kind of readings from my plants...

mgk :tiphat:

Hey Maynard:

I take mature fan leaves from multiple locations except new growth.

refractometer demonstration

Also a useful accessory will be a garlic press to squeeze the juice out of your leaves. Only takes a few leaves, less than 5 or 6.

Collect your leaves to test at the end of the day during lights on. Highest Brix readings at that time. During lights off, Brix levels go down in the leaves as sugars get transported to the roots.
 

MaynardG_Krebs

Active member
Veteran
Hey Maynard:

I take mature fan leaves from multiple locations except new growth.

refractometer demonstration

Also a useful accessory will be a garlic press to squeeze the juice out of your leaves. Only takes a few leaves, less than 5 or 6.

Collect your leaves to test at the end of the day during lights on. Highest Brix readings at that time. During lights off, Brix levels go down in the leaves as sugars get transported to the roots.

Sounds like fun.. gonna give it a whirl..

mgk :tiphat:
 

medmaker420

The Aardvarks LED Grow Show
Veteran
analogue, great shots and the brix tests are something I want to test as well with the different strains. I think it is another solid data point to help us growers out.
 

tenthirty

Member
Anlogue, I would give that cola on a stick a 9 out of 10 easy.

Now the question is........
Is this due to your exceptional growing skills or the light?
 

analogue

Member
analogue, great shots and the brix tests are something I want to test as well with the different strains. I think it is another solid data point to help us growers out.

I love analog tools and that's one of them.

Will be able to start testing the sap pH soon. :dance013:

Anlogue, I would give that cola on a stick a 9 out of 10 easy.

Now the question is........
Is this due to your exceptional growing skills or the light?

Luck. First time I've grown that plant :) :blowbubbles:

There are also 3 colas, so maybe it's Deception :tiphat:
 

medmaker420

The Aardvarks LED Grow Show
Veteran
Yeah it tripped me out at first as well. I saw the first with the 3 colas then saw this single with one big fat cola and got confused but kept reading and saw I wasn't the only one.

Once you look back at it however you can tell there is more than one cola there but from a quick glance it looks like one monster cola. The plants are looking great!
 

medmaker420

The Aardvarks LED Grow Show
Veteran
One of my main focuses in 2013 is working with cbd strains. Can't wait to locate some solid cbd's
 

analogue

Member
I took the opportunity to leqally aquire some Sour Tsunami, which was the male (mom as the Harlequin clone) in the Harle-Tsu that I am growing.

I can see that my pheno looks more like Sour Tsunami, than Harlequin.

Am still undecided how my Harle-Tsu compares to Sour Tsunami. But I will keep purchasing more Sour Tsunami until my harvest comes in.

I like it. As does my body and mind.

The primary constituent of my mixed media is now Black and Gold Organic. It's peat moss with compost, EWC, and humus (not hummus :) ). Mixed in is some shredded coco-coir (and as a top layer). Also 1 cup of CaC03 per cubic foot of the Black and Gold.

NH4=22.9%, EC=1.33, pH=6.37

N = 100
P = 62
K = 100
Ca = 112
Mg = 37
S = 77

Fertigation is 3 pints every 48 hours, at this point.








 

Latest posts

Latest posts

Top