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First time grower with SILS on micro grow

PCBuds

Well-known member
Idk. In my view neither are reiliable.

I agree.

One thing that do know for sure is that my 4 ceiling strips are putting out almost exactly 10,000 lumens combined, and they are almost exactly 1 meter from the plant.

So as far as my math suggests, I should be getting 10,000 LUX?
 

PCBuds

Well-known member
That is what I'm questioning...

I could lower my 2' strips to 21" and turn their power down to half.

Or I could use four 1' strips at full power at 21".


The math and science suggests that four 2' strips at half power is the same difference as four 1' strips at full power.



I don't buy it.

I think four 2' strips at half power is better than four 1' strips at full power.



I dunno though, I need another closet with the exact same dimensions as the first, and two seeds that are exactly the same to compare... Lol

I don't care...

I'm going to illuminate my plant from way above.
I'm going to be wasteful. Lol



If I can just turn on my overhead lights at 71 Watts and let her grow until she flowers, then turn on my 150 Watts of side lighting, then things get real easy for me.

I don't adjust anything, or turn on my side lights, until she has pistols showing.


Real easy.


EDIT: I screwed up my math.
It's a squared relationship.


So, I could lower my 2' strips to 21" and turn their power down to a quarter.

Or, I could use two 1' strips at full power at 21".

I'd be using about 18 Watts then, instead of 71 Watts.
 

Greenheart

Active member
Veteran
Firstly let me say Sampas your plants look AMAZING for a first time grow!!! WTGrow!

I have a few years experience and mine look in sad shape to be honest. Don't sweat what is beyond your means to control. Keep documenting and experimenting. You are getting intentional results and finding out some great info for all of us.

Caio Your advice has been spot on the whole thread. Thank you for everything you are contributing. I'm learning and remembering things I should know. Awesome stuff!


Try it!
But if you want my opinion you need a 4000k for the maximum node spacing.
6000k have too much blue.
2700k have too much red.
The plants grow under 2700k in veg are more squat than under 6000k.
The first thing i noticed on zeus is that plants are more node spaced.
That makes sense when you look at the peaks in photosynthetic response charts. 4000k is the low area for activity so they are probably jumping for the light.

Primary activity
6000-6500k Second Highest Peak
5500-5700k Highest Activity
2700-3000k Forth Peak
2200-2600K Third Peak

Secondary activity
3100k-5100k is 10% or less of photosynthetic activity (but still an active part in the process)
3000-3200k nutrient level light
3700k rapid growth development
5000k enhanced growth

I thought it was the red that influenced stretch. Sorry I was wrong on that Sampas. When I introduced halogens to the mixed spectrum cfls I was using I noticed a lot of node spacing. Looking back on that I think it was because the most intense part of a halogen spectrum is 580-620nm which falls under the yellow spectrum. It was also the most intense light in the room and up higher. Kind of like your 9w was doing when it was pulling them off center.

I was thinking it was the red that was influencing the node spacing because the CFL wasn't true full spectrum and mostly blue no matter which Kelvin color your choose. The halogen balanced and filled in the gaps as well as the missing red. I know it is confusing but it has to do with the mercury vapor technology.

4000k.

Under 4000k the plants don't grow as fast as the 2700k but they eat far less fertilizer and water, much more resistive to any kind of problem and they recovery very fast too.

The flowers have similar shape and density of the outdoor plants.

The clones roots not as fast as the 2700k.
This is interesting. 4000k might be an overlooked area for plant health. Sounds ideal for cloning or isolation of an infected plant.

Huh...
My plant is stretching nicely under 5000 K lighting 95 cm above the plant...



I wonder how it would compare to using my 3500 K lighting coming in from the sides?

I'm figuring that if she got light from the side she'd be less inclined to stretch and want to fill out sideways?

I wonder what has more of an influence?

It's hard for me to do comparisons because I grow one plant at a time and change things every grow.

I have the option of adding some side lighting or switching to just the side lights.

What would you do if you wanted a tall skinny plant?

I'm figuring that if she gets too much light, she might stop growing tall and just fill in instead?

In vert growing the sides become your tops. I had center and top lighting when running vert. It is like scrog but 360 degrees around the bulb. I didn't notice tops slowing to accomodate side growth. I was running CDM 860W in the center and Halogen on the tops.
Under cfl mixed spectrum I had dwarfed plants and tight node spacing. Later I added Halogen and Mercury Vapor to enhance the gaps since the cfls didn't have full spectrums. That is when my plants looked more like outdoor plants.
When I obtained HID I dropped the MV lamp. I ran pure cdm 330W for veg.

I would trim the sidegrowth or lollipop depending on what you are going for and how you are setup. Your setup I wouldn't do lolli's. You might try exerimenting with some side lighting and selective pruning. See how many "tops" you get. Again in vert my biggest buds were on the sides.

What I'm going for in my new cab will be "halves". The right or left side of the plant will be where the "larf" would be and is what I plant to strip away before bloom. The opposite side and tops will be nugs. I wlll plant them as close to the edge as possible and tie along the wall. In veg I'm going to try and get the bloom side and top about 12" then throw it in the bloom chamber.

With too much light she start have problems. Don't care if the lights come from leds or hps.

Side lights are good for flowering.
Not too much for veg.
Lux, genetics, kelvin temperature and how much darkness they get is what give the plants node spacing.
Even loaded you are words of wisdom.

I just ran into the too much light problem. I had the new led 8" away since 5" was max. I noticed purpling of the cotyledons and new tips that were forming. It is winter and a bit of a chill in the room. They weren't showing that before and I only made one change. I increased the distance and they are starting to recover. I moved it up a few more inches just in case.

If you are vegging with sidelights you are probably aren't microgrowing.

Caio you Node what's up. :) Again thank you for sharing your knowledge. This thread ROCKS! :headbang
 

Caio

Active member
EDIT: I screwed up my math.
It's a squared relationship.


So, I could lower my 2' strips to 21" and turn their power down to a quarter.

Or, I could use two 1' strips at full power at 21".

I'd be using about 18 Watts then, instead of 71 Watts.

Or you can double the power and give half the hours of light.
Or you can put a plant under my lamp at 4' (4 Watts).
I had no problem grow cut lettuce or pepper seedlings at that power.

12 Watts, 4', 9 days:

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PCBuds

Well-known member
... I had center and top lighting when running vert. It is like scrog but 360 degrees around the bulb. I didn't notice tops slowing to accomodate side growth...

Thanks, !!
That's what I wanted to know...


I decided to turn on my side lights.
But just a wee bit.

I'm pretty wasted and tend to overdo stuff when I'm wasted.
I will reassess things when I'm sober.







Just 300 ma on the walls to start.



 

PCBuds

Well-known member
With too much light she start have problems. Don't care if the lights come from leds or hps.

Side lights are good for flowering.
Not too much for veg.
Lux, genetics, kelvin temperature and how much darkness they get is what give the plants node spacing.


Even loaded you are words of wisdom.


^^^^ What he said !!!

You took all the questions I had and put it in one little golden nugget of truth.

Thanks for that...
It helps me organize my thoughts with your coles notes version.
 

PCBuds

Well-known member
Or you can double the power and give half the hours of light.

I remember watching the Brady Bunch about 45 years ago.

They improved the recipe for baking a cake by doubling the temperature and halving the cook time.

They burnt their cake...

I don't want to burn my cake. Lol
 

Caio

Active member
EDIT: I screwed up my math.
It's a squared relationship.


So, I could lower my 2' strips to 21" and turn their power down to a quarter.

Or, I could use two 1' strips at full power at 21".

I'd be using about 18 Watts then, instead of 71 Watts.

I remember watching the Brady Bunch about 45 years ago.

They improved the recipe for baking a cake by doubling the temperature and halving the cook time.

They burnt their cake...

I don't want to burn my cake. Lol

LoL
You nailed my philosophy.

Why bake a pizza at 250°C for 7-8 minutes when you can bake a pizza at 450°C in 2 minutes.:yummy:

I don't bake cakes...they quit always burned looool
 

Sampas92

Just newbin
The plants look good. Is it safe to put them on the window? :chin:
Kinda..in my country cannabis is illegal, but the consumption and having until 5 grams i think is legall..we cant have clubs like in spain or coffeshops like in holland because the sale is illegal..so you can have it, smoke it, but you cant grow it or sell it..its good for the black market you see and since the top dealer of the country was arrested in spain we are getting low quality hash and weed..if you want good quality its way way expensive..so im growing on the low budget side.
I have your lights on my mind but dont have the budget for it now.
Thanks for stopping by Mars Hydro Led
 

Sampas92

Just newbin
Thanks guys

Thanks guys

Thanks to all of you that drop knowledge in my thread even from things from other grows from other growers, im lovin it :bow:
 

Sampas92

Just newbin
Update

Update

So yesterday i was looking to my older girls and thinking that they should have a space with a bit more head space..
So i went and put them with in my older cab
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They already perk up a bit but helped them a bit earlier..they seem fine, not about mich new growth in the tip of the main stem but the side branches seems to be bigger she seems to be bushier day by day.
Yesterday she didnt have the heat cable so she spent one night and half a day at 15c temps average..i connect the cable to the controller of the other cab where the probe is..for now the temps are maintaining at 20/22c so not that really bad..
Lets see how they react with a bit more space, not strapped down and a bit cooler than the other cab
 

Sampas92

Just newbin
Day 15 of the Auto Blue Amnesia xxl

Day 15 of the Auto Blue Amnesia xxl

So today its 2 weeks since she sprouted.
Since yesterday i removed the older girls from here i raised the lights by one level (the holes of the cab), keeping the same bulbs i read 7000k lux.
At the end of the day the new growth was praying reaching for the lights
My question is, they are 2 weeks old, they can take a bit more of light now, should i let her grow to the lights or give a more proper light intensity for proper vegging?i say this because i expect from now for her to put out some good growth from other diaries on this strain
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PCBuds

Well-known member
My question is, they are 2 weeks old, they can take a bit more of light now, should i let her grow to the lights or give a more proper light intensity for proper vegging?i say this because i expect from now for her to put out some good growth from other diaries on this strain.




Here's a quote from f-e about lighting intensity...


20K is a lot. I can veg with that. 8K is fine while it gets it's act together. 4K would be miserable and 12K pushing it along.

There is an issue with what it is though. I believe a thin leaf variety to be more accustomed to equatorial conditions. While a broad leaf will collect light from a few candles :)


I think that your plants can use more light.
The problem is knowing how accurate your light meter app is.
 

Sampas92

Just newbin
Here's a quote from f-e about lighting intensity...





I think that your plants can use more light.
The problem is knowing how accurate your light meter app is.

Yeah i know but i only use the meter to guideline and see what i get and how do they respond to the differences in lighting that made them go through..
The thing is they were growing fine at the distance i had the lights..hell im gonna to make everything like before and lower the lights, in the beggining of the grow i decided to let them grow with that distance and bulbs, i shouldnt have switched.
Thanks buds, sometimes we just need someone to make us think
Btw your plant looks :good:
 
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