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WEED IS LEGAL IN CANADA! Live 420chan Q&A and Site Merchandise Giveaways on Stream

Live 420chan Q&A, 420chan merchandise giveaways, Logitech hardware giveaways, partying on Twitch tonight!
G502 Giveaway Ends @ Midnight     Q&A Discussion Thread
Grow by Eliza Cacklekine - Sun, 22 Oct 2017 20:21:00 EST ID:kj8KK8Ch No.145524 Ignore Report Quick Reply
File: 1508718060139.png -(417251B / 407.47KB, 640x1136) Thumbnail displayed, click image for full size. 417251
So I'm buying one of these and I have a few questions

-how big of pots do I need for plants just to wait until I see their sex because I have 2 5 gallon buckets and want to start 5 seeds
-how much perlite should I put in the soil
-what is the cheapest soil I can get best for weed and nutrients
Priscilla Nickleham - Mon, 23 Oct 2017 01:21:54 EST ID:IaBz+5kP No.145526 Ignore Report Quick Reply
Can't tell from picture what wattage that lamp is.

-use smaller pots for germinating seeds, and transplant to bigger gradually. Sexing plants isn't affected by pot size, but age/light cycle. Once you flip to flower you'll see either pollen sacs or buds start developing. If you veg your plants long enough you can see these before flower sometimes, and you can also cut clones early in the plants life, wait until the clones root, and then flip the clones to 12/12 and see what characteristics develop.
10%-50% is fine for most soil.
-fox farms ocean forest and happy frog are the go-to soils for many, not too around $24 a bag I think
Hedda Magglelock - Mon, 23 Oct 2017 11:19:26 EST ID:GqlZyCv2 No.145527 Ignore Report Quick Reply
I know about sexing plants but I want to make sure they have enough soil and room for the roots to grow as much as possible before I find out the gender I don't have a shit load of pots laying around
Augustus Connertodge - Tue, 24 Oct 2017 10:01:30 EST ID:UpIT+Lm/ No.145528 Ignore Report Quick Reply
That light doesn't have a large enough footprint for 5 plants. Don't waste your money on it, even though it probably doesn't cost more than 50$.
Nicholas Tootspear - Wed, 25 Oct 2017 12:49:29 EST ID:HPS5NW+5 No.145534 Ignore Report Quick Reply
It would be okay for one lollipopped Lowryder, still it would be 3 months to produce a 1/2oz of weed.
INTERPOL !3mB4iDBpWw - Sun, 29 Oct 2017 16:26:34 EST ID:uUnVQb2w No.145541 Report Quick Reply

It may be good enough to flower 2 plants if they lower it down to right next to the canopy, and they're not any more than 2 feet tall.
Hugh Snodlock - Tue, 31 Oct 2017 10:55:32 EST ID:+feR4wOL No.145546 Ignore Report Quick Reply
Don't buy those cheap brick style LED grow lights.
The one you posted uses the most crappy LEDs there are (1 or 3W "beads") They are a decade old now.

If you can't be bothered to build your own lights out of COBs, drivers and extruded aluminium heatsinks (the best option, warm white cobs are as good as 180lm/watt now) get something like this:

Important is more than 100lm/watt a wide angle and no fan.
William Packlecocke - Tue, 31 Oct 2017 17:30:35 EST ID:rNBKLqV9 No.145548 Ignore Report Quick Reply
Not defending the shitty LEDs but aren't blue Leds a rather new invention?
Doris Saddlesare - Tue, 31 Oct 2017 20:01:27 EST ID:+feR4wOL No.145549 Ignore Report Quick Reply
About two decades old, since LEDs have been around since the 70s it's still relatively "new".
FYI a decade ago is 2007, time flies...
INTERPOL !3mB4iDBpWw - Tue, 31 Oct 2017 22:01:30 EST ID:uUnVQb2w No.145550 Report Quick Reply

UV's that are just below blue and violet in the spectrum are the newest tech, and they're priced accordingly. The output of them in the correct range of 270-290nm is laughable though, they have absolutely no power behind them and they cost about 10x what a comparable bulb costs. It will be interesting when the tech progresses and the prices come down.
Priscilla Sezzlelick - Wed, 01 Nov 2017 10:51:34 EST ID:rNBKLqV9 No.145552 Ignore Report Quick Reply
So why did they win the nobel prize for physics in 2013? I was under the impression they were groundbreaking. so what they marginally better at 10 times the price?
INTERPOL !3mB4iDBpWw - Wed, 01 Nov 2017 18:32:05 EST ID:uUnVQb2w No.145553 Report Quick Reply

They are groundbreaking but they're just not powerful yet. Last I looked which was a while ago, a 5w true 270-280nm UVB diode was only putting out barely 20 lumens or so and cost 80$+. They could only be ordered from medical and scientific sites and had limited uses. They have a long way to go before they match the power output per watt and price point of the Repti-Sun bulbs that have been on the market for decades.
Betsy Bemmerwack - Wed, 01 Nov 2017 20:24:42 EST ID:rNBKLqV9 No.145554 Ignore Report Quick Reply
There is so much disinformation concerning LEDs its scandalous. I read somewhere that lumens aren't a good measurement of LED efficiency, was that just to cover up how they underperform?
Jack Trotforth - Thu, 02 Nov 2017 14:20:44 EST ID:ol/Sob4l No.145555 Ignore Report Quick Reply
Lumen is the sum of a handful sample points over the whole spectrum (white) so thats not a good way measuring a red/blue lamp that has a few narrow peaks.
Walter Sollernat - Thu, 02 Nov 2017 15:01:32 EST ID:5Oi/BJlT No.145556 Ignore Report Quick Reply

Look, I use a similar setup and get great results. Yeah, I could, in theory, get more by using COBs or HPS or fucking whatever. But, I am growing for me. And this shit works with little fuss.

OP - Buy some autoflowering femm'd seeds. Throw them in some Fox Farms Ocean Forest and just keep it watered and free of pests. Keep the light 2 feet from the tops, and you will be fine. Best way to start.

Then, if you want to stay at it, you can upgrade shit, etc.
Lillian Wenningham - Thu, 02 Nov 2017 17:12:05 EST ID:+feR4wOL No.145557 Ignore Report Quick Reply
Lumen is a measure for the apparent brightness according to how our eyes perceptive it. It is correct that it's not a good measure for efficiency when it comes to growing plants because they are affected be different wavelength in a different way than our vision.
However: When comparing lights with similar spectral emission characteristics it still can be useful. For instance it's perfectly reasonable to compare one HPS to another because their spectrum differs by a very little bit.
To some extent this also can be said for LEDs with the same color temperature, it will be more off than for a HPS but it's still useful. A HPS with 150Lumen/Watt is 15% more efficient than a 130Lumen/Watt one, within 1% because the spectra are almost identical. A 150Lumen/Watt 3000k LED is 50% more efficient to a 100Lumen/Watt 3000k LED within probably something like 10%.
INTERPOL !3mB4iDBpWw - Thu, 02 Nov 2017 18:03:57 EST ID:uUnVQb2w No.145558 Report Quick Reply

The other replies hit the nail on the head. If you want to measure power behind LED's, first know your spectrum. Every manufacturer will show you a spectrum chart on loose LEDs that you buy. Don't trust the Chinese or Hong Kong vendors on Ebay unless they're selling name brand packaged diodes, they'll tell you anything to get you to buy something like, "Yeah this identical diode we're advertising in another auction as a 420nm royal blue is also a 280 UVB bulb" It's usually too good to be true.

To measure LED intensity correctly you'll want to get a PAR meter.

Lillian Garringdale - Wed, 08 Nov 2017 09:14:41 EST ID:3FKmUudm No.145576 Ignore Report Quick Reply
Yield isn't the only factor. Plants grown under blurple lights are never as complex in the smell and taste department. I've grown with different types of blurples and while they do produce weed, I wouldn't use them if I was the only person smoking the stuff.
Isabella Menkinnidge - Tue, 14 Nov 2017 04:10:46 EST ID:QI1rXhZY No.145584 Ignore Report Quick Reply
Yeah but for the most part users on this site aren't strict connensewers. Indoors all you need is a stable enviroment within an enclosed reflective space for your plants. With around 200w of Cfl, or HPS or Led, and a correct understanding of this plants feeding/watering schedules, come harvest time you should have a decent yield. On top of that you know exactly what went into the grow as far as ferts and pesticides go.
Priscilla Drecklekid - Wed, 22 Nov 2017 01:10:57 EST ID:B0kZyQRI No.145595 Ignore Report Quick Reply
-1 seed in each 5g will work
-go to hardware store or supermarket, gardening store, neighbors compost pile whatever is nearest and find out, etc. if you want to save money by using your own shit give it a go what the hell

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