fan

i just bought a 4" carbon filter and a 25W fan. my grow space is 1.5' by 8' to the cieling (closet size). my babies are about an inch tall. when should i start with the carbon filter and the fan (heat doesn't seem to be an issue yet - thermo reads 78 degrees, humid 52%).

thanks!

use the fan always from the get go when the lights are on or off(to strenthen stems) you will only need a carbon filter for smell right?????.
if so then when you switch to 12/12 they start to smell after a dew days.flower at 9"tall and get temps to 74 day and 68 night.
good luck.
LUDA.

Nooby here...... Dont waist ur carbon filter yet like luda said. When u flower then u will need it. Im at three weeks right know and all i have done is use ro water with ph 5.8-6.0 and flouro lights 24/7 with 6" fan on 24/7 too. All u have to do is water once or every other day.. Keep the heat between 75-85
hope this helps good luck

Use a moisture meter for your soil(a must).
74 degrees day and 68 night is perfect.
Vent as much as possible and keep fan on 20/4 or 24/7 like me.
Theres nothing better than falling asleep to the noise and blast of a big fan in your face.
Ludacris.

good environment going down in ya grow space
good humidity too.
as everyone else said no reason waste good carbon for veg.
good luck too u.

ps luda what up with the album? cant keep me waiting