My indoor plants do grow well over twice the rate of my outdoor. My understanding from watching the plants for awhile now is the confusion is the bud weght or size will be increased. What I’ve seen is just that the plant material itself is vastly increased bud size seems to be mainly genetic and plant health as the main variables.
Curious is this a HID or LED setup, 80 degrees seems kind of low for led even without co2.
At the low end for sure. Maybe 80 in room and canopy closer to 85?
Something tells me their is other limiting factors and by adding co2 probably isn't even doing that much in your case to begin with. Plants love the co2 I would consider running it from cut to harvest.I only run CO2 during the stretch. Also allow heat to get to 90 and make sure the girls get a good feed of bloom a week before the flip then watch them explode after the flip. Once stretch is over let it go back to regular patterns and that seems to work fine. If I'm only using a 600 or even 400 I'll run my alcohol lamp to keep CO2 up as it stays cool enough that the exhaust fan never turns on when set at 80 so they could run low on CO2.
No need
True, but I run perpetual so there's always co2 in the room, they will just keep getting harder and harder and harder. Plus the branches are much stronger when they have co2 in veg to hold up the branches of buds. It's really grower preference I haven't found it delays ripening by any more than a few days if anything or at all nor does it reduces aromas just heavier frostier buds. But that all depends on the environment the operation is in and limited to those factors. The plant will finish when it wants to given the conditions it's in. Often times adding co2 is pointless because the intensity of the light needs to be contained literally wall to wall or in a tent to even utilize the co2 benefits anyway to maximum effect because any loss in intensity greatly reduces the effect of the co2. This is were the 2-3 grams per watt numbers come in.
I just use a DIY alcohol lamp burning methyl hydrate for my CO2 generator so it's fully manual and I don't want to have to be going down there twice a day just to light it and put it out. I bought a CO2 controller and solenoid as I already had a regulator but after running some tests with how high the levels got with even just a candle or hanging out in the grow room for a while said fuggit to all the money to get tanks of gas.
Most people have an exhaust fan running continuously so fresh air with 420ppm minimum of CO2 is being brought in all the time. My exhaust fan is on a temp/RH controller with a speed controller so it runs half speed and only runs when the temp or RH gets high enough to trigger the switch. That can be never in the winter when the light isn't enough to get it up to 85F and the air is so dry the RH in the grow room barely hits 30% and can be lower. Only 13% right now in the mancave and -12C outside.
Looks much safer. That blow torch is hilarious though. Even a small flame is way more than enough.I just use a DIY alcohol lamp burning methyl hydrate for my CO2 generator so it's fully manual and I don't want to have to be going down there twice a day just to light it and put it out. I bought a CO2 controller and solenoid as I already had a regulator but after running some tests with how high the levels got with even just a candle or hanging out in the grow room for a while said fuggit to all the money to get tanks of gas.
I tried this first but it was a bit of overkill and the fuel is expensive.
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The little unit at the bottom uses around 100ml of methanol in 12 hours and keeps the CO2 over 1500 unless the exhaust fan turns on then only takes 10 min to get it back up to 1500 so. In cold weather like -30C for 3 weeks the exhaust fan never turns on with a 600W light and the room is fairly airtight. It's just a short piece of 3/16" copper tubing soldered onto a mason jar lid and uses a cotton shoelace for a wick. Ve. 1.0 and 2.0 used 3/8" tubing and tiki torch wicks but made way more gas and burned way more fuel. 2 wicks in the first one and one in the 2nd.
Ver. 1.0 Crappy looking soldering job but it didn't leak.
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Ver. 2.0 With the wicks really short there's a very faint blue flame and not the torch seen there.
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Ver. 3.0 If you look real close you can see the faint blue flame and that's all it takes to make enough CO2 for my room. I just put that wire nut you see at the bottom of the pic on to snuff out the flame and slow evaporation when not in use.
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A 4L jug of 99.9 methyl costs about $12 and lasts a whole grow. Nothing to catch fire around it or over it so even if the jar broke it would just sit there and burn itself out. When I poured a cup in the metal can and lit it the flame went out after I closed the door then 15 min later checked. Used up all the oxygen in there and self-extinguished. Got all but 75ml back.
Works for this broke-ass old grower.
