Mixing White & Multi Spectrum Chip LEDs to Grow MedMan Silver Skunk BX1

PetFlora

PetFlora

Well-Known Member
Saving space here for my next grow

As much as I and my friends absolutely love my BrandX poly WH x WW, pollinated with BGum, and that I have a bumper seed crop pollinated with G13 male, it is very slow to finish

I am awaiting Medman's Silver Skunk BX1 He has lots of outstanding offerings

60-70 day flower for an awesome pedigree sat will be welcome now that weather is beginning to warm up

Will be grown under my 2 ufo 90s (Helios 3w diodes 3500/5000K), which I used for this past grow, but once buds set I added 3 x 4ft @ 16w 3000K tubes (~50w): total wattage ~ 230w.

Although I ODd the clones managing to over mix with Sea Crop minerals, I still pulled over 120gms trimmed, but wet.

LED Harvest Trimmed.jpg

Will be getting a deeper tote to double the nutes

The tubes will be replaced this grow with 2 @ 75w multichip/reflector lights

Will put them on each end of tent, probably aimed at ~ 30* angle toward the plants

Might even add them as soon s seedlings are ~ 3 weeks old

Link http://www.ebay.com/itm/Reflector-Cup-Square-UFO-75W-LED-Light-Grow-Panel-Integrated-3w-COB-Flower-Lamp-/190951524750?pt=US_Hydroponics&hash=item2c7599098e
Power consumption is ~ 48w. Does that mean output is actual 48w?


Item specifics
Condition:
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition
Type:
LED (Light Emiting Diode)
Model:
HYG01-1*75W-W

Brand:
Ledlightplant
Power consumption:
48W+/-2%

MPN:
75w cob led grow light
Dimension:
180mmx180mmx83.5mm (7.1inch x 7.1inch x 3.29inch)

Wattage:
75w
Lifespan:
50000-100000 hours

Country of Manufacture:
China
View Angle of LEDs:
90° reflector cup
 
PetFlora

PetFlora

Well-Known Member
Sadly, it seems this thread may not come to fruition due to a perceived conflict of interests between 'competing' grow sites

That would be a shame as medman has some awesome strains

I have some ideas for a work around, but title will need to change
 
PetFlora

PetFlora

Well-Known Member
The 2 @ 75w multispectrum cob lights from LEDLightPlant are on hold.

Thankfully my partner failed to complete the order info.

Turns out the pic of the chip they show is NOT the chip that comes with the lights.

I emailed them, but chances are it was intentionally deceptive advertising

Looking for a suitable replacement. If all else fails, I will supplement with my 3000K Cree A19 bulbs
 
PetFlora

PetFlora

Well-Known Member
Surprisingly, I did hear back from LEDPlantLight

They say they have 2 different chips, and sent me a bad link to the correct one

They also sent me a breakdown of the 3w diodes inside each.

Oddly, they have a 75w and 100w chip, neither has good spectrum balance

Neither looks like the pictured chip in their lens cob light

They asked for my input which I gave
 
PetFlora

PetFlora

Well-Known Member
I dropped 7 seeds in ~ 4 ozs water with a couple drops of Neptune Seaweed Plant Food

24 hours later all seeds cracked

Yesterday I put them in super starter cubes

and placed them under 2 ufo 90s: 3 watt diodes- all white; one is 5000K the other 3500K

Lights are ~ 3ft above the seedlings; 24/0

Light + MM Seedlings.jpg MedMan Seedlings.jpg

This morning they have all broken out

I reseated the one on right side that practically grew out of the cube
 
PetFlora

PetFlora

Well-Known Member
Not happy about it, but I had to harvest at least 10 days early- no signs of amber

I made only 2 changes in the last 5 days

1. I put a ladies footies on each pump to keep them clean
2. I started adding jugs of frozen water, reducing the rez temp from ~ 80 to ~ 70

One of the jugs had a label which was barely submerged into the nutes, so not likely, but the footies...

I would not suspect the nylon, BUT, each footie has a ~ 1/2" x 1" tab at the heel, made from some sort of flexible material, both of which were completely submerged

No doubt china made- bought at Wally world

What I noticed in just 2 days was, the main stalks and branches all turned a pale yellow beige + leafs started drooping/dying

Fresh Nutes ~ 250ppm, pH 6.0

Yesterday morning, I noticed the rez had a small amount of soapy looking bubbles mixed in with the air bubbles

I immediately drained the rez and flushed with RO water

This morning no recovery, so I harvested.

IMG_2130.jpg IMG_2131.jpg
 
PetFlora

PetFlora

Well-Known Member
I think I figured out what happened

I cleaned the Hydro Halo rings by soaking them in a mixture of Dr Bonner's pure soap + Arm & Hammer Washing Powder

Although I rinsed them, apparently not enough, which would account for the bubbles and even though the rez pH was fine (6.0) the roots got soaked with washing powder residue

So the moral of the story, thoroughly rinse your HH rings

Hopefully, the footies over the pumps will prevent algae build up inside them
 
PetFlora

PetFlora

Well-Known Member
All 6 seedlings are pushing on 2"

Not sure how long to keep them under 24/0

I usually do this for a week then cut back 20/4 until they are ready to flip

Thoughts?

Lights

We're getting closer to very bright future with leds

COB emitters are game changers. Think mini hps, but with directional light (no reflected loss + much less heat)

See links below to a good example eshines 5G. Now it can be improved by replacing the multi-chips with COBs + a few other things, BUT...

It is user friendly. and simple to replace emitters- YEAH!

If this multichip had NW or CW (depends on the specs) in the middle @ ~15%, surrounded by the WW *~50% 3000k + 50% 2700K), that could work quite nicely, but cobs are more efficient, PLUS, being all one spectrum, their life expectancy is both greater and uniform

Improvements would include:

* driver moved outboard to minimize heat
* Note emitter layout on 160 v 320. The 160 will provide more uniform coverage
* Daisy Chain
* 2 o/o switches one for the outside 4 emitters. This to be employed once fruit is established
Plants in vegetative stage do not need as much WW as they do once fruiting begins

Remote is an unnecessary expense

http://www.youtube.com/watch?v=4Zmxkc2W_Xo

http://www.eshinesun.com/growsun/growsun-series.html

Hope this helps
 
PetFlora

PetFlora

Well-Known Member
Since roots are already protruding outside the 1/2 size starter cube it was time to move to phase 2: the bubbler

I posted step-by-step pics so anyone can see how to do this.

To minimize root rot, I cut starter cubes in half, and water with a meat baster, or eye dropper.

Once the seedlings outgrow the plastic egg tray, they are moved into 3" net pots, 6 of which fits into a 4g tote

I combine small and medium size polished ornamental stones (Dollar Store) in the net pots. First I put a single layer of 'flat' stones on the bottom of the net pots, followed by the plant.

The rocks on the bottom forces the roots to grow sideways, which makes for a stronger anchor for the main stem. I then cup the plant and begin infilling with stones, being very careful not to hit the delicate stems

The stones keep the developing roots cool and allow any additional top feeding to quickly drain into the bubbler.I use a 15 liter per minute 4 head air pump + 4 large oxystones. Note the pic also has a 4" disc, which throws more air, BUT, it is too light, and floats. Figure out how to keep it on the bottom and it's an even better option

I keep the water line right at the bottom of the net pot until roots start exiting, then lower the water line

Nutrients

I like Hydroponic-Research V + B it is a one step powder. It works great, and I am not paying shipping cost for water, PLUS, I have an RO. Water comes out ~ 20ppm. At this stage I mix @ ~ 200ppms, and we're off

6 Seedlings in Egg Crate.jpgRooting Seedling.jpg Rocks in Bottom NP.jpg IMG_2137.jpg OxyStones + Disc.jpg Bubbles.jpgSeedlings in Bubbler.jpg
 
Chronikool

Chronikool

Well-Known Member
PetFlora said:
All 6 seedlings are pushing on 2"

Not sure how long to keep them under 24/0

I usually do this for a week then cut back 20/4 until they are ready to flip

Thoughts?

Lights

We're getting closer to very bright future with leds

COB emitters are game changers. Think mini hps, but with directional light (no reflected loss + much less heat)

See links below to a good example eshines 5G. Now it can be improved by replacing the multi-chips with COBs + a few other things, BUT...

It is user friendly. and simple to replace emitters- YEAH!

If this multichip had NW or CW (depends on the specs) in the middle @ ~15%, surrounded by the WW *~50% 3000k + 50% 2700K), that could work quite nicely, but cobs are more efficient, PLUS, being all one spectrum, their life expectancy is both greater and uniform

Improvements would include:

* driver moved outboard to minimize heat
* Note emitter layout on 160 v 320. The 160 will provide more uniform coverage
* Daisy Chain
* 2 o/o switches one for the outside 4 emitters. This to be employed once fruit is established
Plants in vegetative stage do not need as much WW as they do once fruiting begins

Remote is an unnecessary expense

http://www.youtube.com/watch?v=4Zmxkc2W_Xo

http://www.eshinesun.com/growsun/growsun-series.html

Hope this helps
Click to expand...
Hurry up Pet...stop preaching and buy a COB.... so you dont just become the guy who talks and doesnt do anything about it... ;)
 
PetFlora

PetFlora

Well-Known Member
I heard that.

I've been in contact with several Alibaba (chinese factories). Trying to get them to make a proper COB panel up for me to test and report on

Man they just don't get it, or are so heavily invested in multichips that they can't move forward

The 2 ufo 90s Jeff gave me are more than sufficient for now

Looks like StarDustSailor is going to have some nice panels, even though he's not going cob.

Worst case, I may hit Jeff up for a 75 to bring these Silver Skunk seeds home in the led tent
 
PetFlora

PetFlora

Well-Known Member
Is it possible to change this threads' title?

I have regained my sanity, or lost it...

Here is the elephant in the room that no one has considered

Don't confuse any R/B or multi-spectrum emitter first generation grow results with what will likely happen in subsequent generation seeds/clones, namely: genetic alterations, due to improper spectrums that are likely to negatively affect all subsequent seed generation

Genetic Predisposition

https://en.wikipedia.org/wiki/Genetic_predisposition

Plant and animal genetics will change/adapt due to environmental stresses- and rarely for the betterment

Human and animal predispositions include; heart disease, cancer, scurvy, hip dysplaysia, allergies... to name a few well known subsequent generation genetic alteration/health issues.

Unless the cause changes, predispositions are likely to develop

IMO, this is compounded because mj is a fruiting plant, therefor having a greater need for a balanced spectrum throughout it's life, although that balance is tilted toward blue spectrums in veg, and red in flower

Think how commercial fruit and vegetable agricultural practices of not replenishing the soil with proper macros or micro nutrients has impacted not only the taste, but the nutritional value of the foods we eat

At least 10 years ago, the Department of Agriculture stated that agricultural top soil (top 6") is dead

Nutrients is energy, and so is light

So whether I am growing with hot5s or leds, make mine predominantly WHITE
 
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