Question about venting.

I have a 2x2x4 homebox XS. I have a carbon filter going to a 6" inline fan and then out. I just started flowering (1 week). And was wondering....Do i keep the inline fan on @ all times (24/7)? Or just when the lights on? This is my first grow/post btw, thanks in advance.

squints68 said:

it's called a timer

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I have a timer lol, but do i turn the fan off w/ the lights or leave it plugged in regular?

skip02 said:

I have a timer lol, but do i turn the fan off w/ the lights or leave it plugged in regular?

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Hey mate. The plants have to breath fresh air all the time. Have the fans go on in intervals during darkness, I do 20 mins every hour.

i have my fans on a thermostat. they only come on when the temps are above 85*.there is on need to vent when the lights are off unless the temps are high.