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Off room is outgassing CO2, not consuming, resulting in above ambient CO2 levels which are lost to outside in OFF time vent cycles for relative humidity exhaust and fresh oxygen back in and maybe in need of heating. ON room needs CO2, cooler air, and can give back to OFF room dry warm fully...

Nearly every post talks in terms of what our eye sees and we skip photosynthetic requirements. www.inda-gro.com has best lighting tutorial available for growers. Plain english, photon count right down to the micro-mole. How much dry weight desired, here's the photon mole count, 95%...

Free CO2, about double ambient, gasses out from roots during lights off. Therefore, 2 grow rooms, well sealed, cross ventilated, one ON one OFF, symbionically support each other because both have what the other needs. There's no extra carbon footprint and a biomass increase to your show...

5 ea T-5's over 6x3 box will make some fine plants, from Incept thru Harvest. Front end of learning curve quickly turns to Zebra stripes and early gardeners weren't nearly so calculation dependent, they just put up some lights and learned. Today there's much more info and better equipment but...

October420, Congrats on start-up. At some point you just have to run w/plan, parts, methods, seeing where that gets you and with clarity of viewpoint, make adjustments. Majority of indoor gardens greatest induced problem is creating a oven via using lighting where half the light is not...

In reality, great value exists in ability to cultivate clone/seedling/juvenile up to 28 days into low wide phenotype, 8-10 inches tall and wide, lightly root bound. That's 2/3's of a finished crop bought off the shelf. Remaining 1/3 is carry home, transplant to larger media, mild bloom...

Fluid dynamics, same law for; low density fluid, our atmosphere medium density fluid, water=1 high density fluid, maybe a volcano erupting. None will pull but a tiny bit, All will push with million+ psi. If your set-up pulls satisfactorily, then you're good to go within small...

b-leb, about 25% dry weight increase if all factors in balance. Back in the day, my buddies Pop replaced his chevy 409er every time it blew north of 8 grand and he never learned motors..., Old ford pick-up w/300 straight six hauling hay bales is where you learn power.

Indoor garden is defined volume illuminated w/defined light whose intensity is borderline useless only few feet away from source and nothing in known physics can change that for any light source for indoor gardening. Therefore, every plant shoot should have a planed place in space in order to...

b-leb, Tough to find more pleasure than paralysis of this analysis but you're there with what's necessary to make a good first run, view results, adjust. Using 6x3 box, 5 ea single T-5 fixtures, 4ft, 6500K, about 7" side to side spacing, centered in box leave 1 ft uncovered ends, a great...

Hey all, Retired and new MMJ patient, first time seed shopper here. Wondering do seedbreeders/seedbanks, in the fall, seasonally produce most of their marketable seed, or are the best/popular seeds produced year round? Barney's Farm, LSD regular seed, is listed on their website but all their...

Another grey geezer checks in here. Not sure if I'm an old new guy or a new old guy..lets see, old enough to have hoed tobbacco and wish Elvis were still around, young enough to dig chicks shaking their booty! More and more of my type, Mr Granola Ironworker, have shown up on the high rise...