MassGrows Takes On COB LEDs

MassGrows

Well-Known Member
Whats up 420Mag starting another journal to educate myself and show my garden to the best Cannabis forums on the Web! This will be my 2nd grow under my belt and we'll jump right into it.

What strain is it?
1x Blue Dream
1x Pineapple Express
1x Chemdog #4
1x Glueberry OG
Is it Indica, Sativa or Hybrid? What percentages?
All strains are mostly Indica except the Blue Dream which you all know is a Hybrid 70/30.
Is it in Veg or Flower stage?
Vegetative Stage
If in Veg... For how long?
Chemdog is on Day 38 while the other 3 are on Day 45
Indoor or outdoor?
Indoor Veg tent 4x4 then switch to Flower tent in 2 weeks or so which is a 7x7
Soil or Hydro?
Soil
If soil... what is in your mix?
Fox Farm Ocean Forest Soil/Perlite/Earthworm Castings/Compost/Dr Flower Nitrogen Booster
If soil... What size pot?
Started in solos then 3 Gallon Pots and finally into 10 Gallon Pots.
Size of light?
2x Optic 4 COB LEDs this fixture has 4 50 watt CREE CXB3000 and 64 5 Watt Epistar/Bridgelux Dual Core with secondary reflectors and UV/A
2x Optic 1 Cree COB CXB3590 60 Watts for Supplemental Lighting.
Temp of Room/cab?
Currently in Veg tent temps wont go over 80 degrees
RH of Room/cab?
No higher that 62%
PH of media or res?
6.6-6.8
Any Pests ?
Gnats but they're under control, I spray Neem Oil when needed and sticky traps on deck
How often are you watering?
When needed or when soil is dry to the knuckle
Type and strength of ferts used?
Fox Farm Nutrient lineup, Botanicare CalMag, and occasional Molasses. Mostly half strength when feed. Tap water which has PPM of 75 which is then Oxygenated 24 hours before feed.

I do a lot of LST and only Top once. When I switch them to Flower I will be running 2x Optic 4s and 2x Optic 1s. This will be my first grow under LEDs, my first grow was under 2 600 Watt HPS Lights. After countless hours of research I decided to switch to COB LEDs after all the amazing results I have saw!
Here are the Optic fixtures.

COBS Only

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Optics 4s and Optic 1s

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COBS and Epistars/Bridgelux

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Glueberry OG

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Blue Dream

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Pineapple Express

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Chemdog #4

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Day 48

Huge growth of the weekend Fed them Grow Big and CalMag Friday morning and these girl BURSTED in new growth!! Switching to Flower in a week or so and first harvet will be this weekend!!

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Day 55

Fed these girls in Veg yesterday, I hit them with Grow big PH'd to 6.7, RO water. Runoff was 1100 PPM. They are looking healthy and bushy, cant ask for much more. Ill be flipping to flower at the end of this week.

Chemdog (Front Right) Blue Dream (Back Right) Pineapple Express (Front Left) Glueberry OG (Back Left)

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Coming along very nice,is that their final pot or are you potting up? Could you give us a report on your GSC which breeder taste strength ect,i ask as i have seeds of same the same variety waiting to be selected from my collection. regards

Sure will Improvise, so I will be transplanting on Friday into 10 gallon pots, my previous grow was in 7 gallons. Then they'll be switching to flower on Saturday and the GSC is currently drying and then Ill jar it for a week or 2.

Some shots of the GSC

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Whats up 420Mag sorry I haven't been as active, I have been really busy but I had my first crop which came out way beyond expectations I ended up harvesting 17.5 ounces dry off 4 plants so I think I did pretty good. But now thats over yesterday I cleaned
 
The entire Flower tent inside and out and the girls got switched to 12/12 today. I am no long running HPS bulbs and have officially switched to LEDs. In the 7x7 I am running 2x Optic 4 LEDs Cree CXB3090 COBs and 5w Epistar/Bridgelux diodes with secondary reflectors as wells as 2x Optic 1 Cree CXB3590 with reflectors. Also bought a cloner and am trying to clone for the first time so we'll see how this goes.

Setup 2.0

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Old Setup from Last Harvest

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Let's hope I clone these the right way haha I cut 2 Blue Dream/2 Pineapple Express/2 Glueberry just incase they all dont root.

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Feeding just got 10x easier!! Just waiting on the Dramm Wand to come in from Amazon and a 10 foot garden hose. This might be one of the best purchases for the garden cause let me tell you, getting in under that scrog is a pain especially with the size of these girls. This pump has a bypass which is preferred because it doesn't put stress on the motor if its running and not being used. For anyone looking at pumps to buy I would definitely recommend this one, it comes with a 5 year warranty and I purchased it at my local hydro store for 40$.

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Day 3 in the Cloner no signs if Roots yet hopefully we can get at least 4 out of 6 to Root which would be ideal. Temps and humidity around where they need to be for cloning?

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Day 3 in Flower and things are going well. The highest temperature right now is 75 Degrees with these LEDs which is AWESOME. I had highs of 86 degrees with the HPS bulbs. Here are some pictures of the flower girls.

Back Right: Chemdog #4 Front Right: Pineapple Express

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Back Left: Glueberry OG Front Left: Blue Dream

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COBs and 5w Diodes!

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Day 5 in Flower

Girls are looking good and will be getting fed today with Fox Farm Big bloom supplement and CalMag noticed a little Calcium deficieny on a couple leaves on the Blue Dream. Time to see what this Dramm Wand and pumps all about super stoked cause watering will be WAY easier now. Also lollipop and removed fan leaves blocking bud sites. The SCROG is going to busy this grow I can tell already but here are a couple of updated pictures.

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Back Left: Glueberry OG Front Left: Blue Dream

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Back Right: Chemdog #4 Front Right: Pineapple Express

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Calcium Deficiency

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Pump, Wand, and Hose

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Quick Picture of the Electrical work I did

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