Lower fan leaves tend to get yellowy from lack of light when there's a lot of veg mass above them. I take those off as part of biweekly maintenance after taking a batch of cuttings.

Pure sativas are really rather wimpy plants. They tend to have a lot of internodal space and just not as much foliage as the characteristic squat, dense pure indica types. Leaf blades are thinner and leaves are generally smaller on pure sativas. These are the characters that we use to define the difference between these types. The lower foliar density would permit more plants per sq ft. Considering my experience with some nearly pure landrace sativas, I think that doubling the planting density could work. Would have to try it to be sure, tho. Would be highly dependent upon the strain.

Keep in mind that most strains available these days are not purebred but rather hybrids of sativas and indicas, mainly favouring indica characters for their high production of budmass and shorter flowering duration.

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How not to grow dope - 'Not Your Father's Marijuana' / 'new super cannabis' / 'extra potent hydro' myths busted
DIY batwing reflector - DIY power panel to keep electrics safe and neat - DIY low-temp 3-day bud dryer - Get a harvest every 2 weeks - Photoessay: A batch of clones in rockwool - Project Big Blue Bastard: DIY 5-tube, 100 watt UV ioniser

...and don't even THINK about asking me how to hide your grow from your MOM. This is an adult sport. Give it up until you grow up.

Ok al I know you get tons of these question but, are your pots 7 175mm deep from the top to the bottom? And i meant from the top lip to the bottom of your tray how deep was it?

The trays or the pots?

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How not to grow dope - 'Not Your Father's Marijuana' / 'new super cannabis' / 'extra potent hydro' myths busted
DIY batwing reflector - DIY power panel to keep electrics safe and neat - DIY low-temp 3-day bud dryer - Get a harvest every 2 weeks - Photoessay: A batch of clones in rockwool - Project Big Blue Bastard: DIY 5-tube, 100 watt UV ioniser

...and don't even THINK about asking me how to hide your grow from your MOM. This is an adult sport. Give it up until you grow up.

i have one plant, og kush/s.a.g.e and while even though it is fairly indica dominant, the fact that it has sativa genetics shows. it gtows tall and lanky. but it is very resillient, it will stand up to anything.

I would really love to grow this plant in a SOG.

Do you think it can be done?

On both the tray and the pots!

Oh, sure, you can grow any strain in SoG. That's not a problem. When you start mixing strains, the stature difference can be problematic. Indicas are normally used because they produce best in the SoG environment.

The pots are 175mm top dia, 130mm bottom dia and 175mm tall. The trays are 820mm x 820mm x 100mm deep. The overflow tube is 75mm tall.

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How not to grow dope - 'Not Your Father's Marijuana' / 'new super cannabis' / 'extra potent hydro' myths busted
DIY batwing reflector - DIY power panel to keep electrics safe and neat - DIY low-temp 3-day bud dryer - Get a harvest every 2 weeks - Photoessay: A batch of clones in rockwool - Project Big Blue Bastard: DIY 5-tube, 100 watt UV ioniser

...and don't even THINK about asking me how to hide your grow from your MOM. This is an adult sport. Give it up until you grow up.

I didn't recognize you with you're new avatar. I was kinda freakin' out there for a second.

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"I smoke two joints before I smoke two joints then I smoke two more!"

Yep, I'm using that one on other pot boards, thought I'd standardise.

Just so you know, I came by it honestly! I stole it from an anti-drug website and built it into an animated GIF. At least someone's great stoner art is being used in a positive way.

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How not to grow dope - 'Not Your Father's Marijuana' / 'new super cannabis' / 'extra potent hydro' myths busted
DIY batwing reflector - DIY power panel to keep electrics safe and neat - DIY low-temp 3-day bud dryer - Get a harvest every 2 weeks - Photoessay: A batch of clones in rockwool - Project Big Blue Bastard: DIY 5-tube, 100 watt UV ioniser

...and don't even THINK about asking me how to hide your grow from your MOM. This is an adult sport. Give it up until you grow up.

Hey AlB...great post BTW.

Quick question on the clone chamber. Do you have a door or cover on the front of the unit after the clones go into it?

hey al...just a quickie, my grow room is 8'x14' and i have a window unit ac in the room so i was wondering if i still needed other outside intake fans or does the a.c. negate the need for them. exhaust etc...i got it! but this stupid question is stumpin me.

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MY OTHER INTERESTS INCLUDE BUT ARE NOT LIMITED TO....
THE UTTER AND COMPLETE ANNHIALATION OF ALL THOSE WHO OPPOSE THE MIGHTY WEED BARON....ESPECIALLY SPARKAFIRE AND CUSTOM HYDRO