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Usually u want yer intake to be half as strong as yer exaust for proper venting. So i would say try a 6 inch, or a fan that moves about half as much cfm of air than the 12. You could also try fan controller for the 8, which will slow down the fan speed if its to strong, and that way you can also...

Yer gonna need a pretty strong fan to exaust ur space bro. Also like Tobaaaac said, u need to make sure your hoods are sealed for the air cooling to work.

To find the cubic feet of a room multiply length x width x height, and that is ur cubic feet of the room. Now you want ur exaust fan to move all the air in the room out, 2 to 3 times per minute for optimal coolin, hence cubic feet per minute.

how tall is the room?

Around the 4th or 5th week, but depends on the strain. Just watch the plant(s) for when the buds start swell/grow at a fast rate

Cant wait to see an update. Keep it clean with the green. :peace:

Hold up. I just read the faq and it said maximum flowering rate, not resin production. Wat u said fucked me up but o well. It could be worth a try if u want to experiment, but to have proven results u would have try multiple strains and use the scientific method

Peak resin production would be towards the end of flowering, so it wouldnt affect yield cause buds arent really going to grow ne bigger. Its a crock of shit. Just stick with 12/12 and think about how to optimize your growing conditions.

I also a agree with Gk. Light intensity only effects yield. Finishing times are determined by a plants genetics.

A table with casters would make things very easy if your able to move something that large in and out of your main grow area. and if want to go further you could build a frame around the table to cover it with say black poly so the plants have less of a chance of being stressed when moved...

Yeah Victor Vicious has done some good work with those T5's

Yeah im gonna buy a reflector(that i could make for $30) without the bulb for $80. Some ppl might not have a problem blowing cash on sumthing like that, but i like to save where i can, and at $15 u cant go too wrong.

I think the equivalent, not exatly sure though. But it was the spiral type which is weird for that high of a wattage lamp. I guess ill let pll know wat the exact wattage is wen i get one.

Today i was shopping at my local lowes and as i was wandering through the lighting department trying to think of wat else i had to buy, and i noticed, next to the other Clf's, a 300 watter. I took it out of the box to look at it and the shit was huge, about the size of a 400 watt mh. I didnt...

Thats wat i was thinkin, cause i figure 100 watts per square foot in my 2x2 grow space

Im planning on doing a 9 plant SOG drip setup with expanded clay. I'm going to be using a 400watt mh(all have at the moment) with an aircooled reflector. Clones will be vegged for 1 and a half to 2 weeks and grown in 6inch square pots. Assuming all other conditions are optimal, wat can i expect...

Yeah id agree with wbd. To play it safe, id give the soil a good flushing,and use a reasonable strength 2 or 3 part nut. system and eventually adding a bloom supplement