Is there anyone out there that could tell me the most efficient way to set up a venting set up for a cool tube in line fan ? Blower ? It will be in a 6x6 room ,600w .might run co2 later ?

The cheapest and most efficient way I have found is an inline duct fan you can pick up at a hardware store. Mount it right after the light. Be sure to run a intake to it or you will suck out all the humidity of the box. You could always cut a hole on the ducting if you need to remove some humidity in flower then tape it up again.

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Waterfarm (completed) Cabinet to Waterfarm (completed) Nute Challange (completed)

LED/T5/400W Cabinet (completed) Dual Cabinet Build (current) Dual Cabinet Grow (current)

It depends, if you are going to use a carbon filter for odor control you will need a bigger fan ( blower )due to low static pressure, if you use an o3 generator you can use a smaller fan ( inline).

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ak47-first-indoor-grow

I have a carbom filter , Got it off of fleabay its the canister but on the top it already has a fan mounted on it , you can just plug it in and its supposed to be used as a scrubber , so was not planning on putting an vent line on it . Thanks for the input .

I see, You need to consider other factors such as fresh air for the plants, cooling the tube with inside air or outside air, exhausting the cool tube indoors or outdoors. Once you determine what you want then you can pick the fan with the correct cfm for your tube. In my particular setup I chose to use a passive air intake that both brings fresh air into my veg area then passing to my flower area through a light trap between the two, the air then passes to a square duct I made to house the ballast passes trhough the cool tube, through the in line fan and exits 12 ft away to the outside. All that accomplished with a single 250 cfm in line and an 03 generator that run continuously unless I'm gassing them. GL dude

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dikncider , man thanks for the input , I kinda can kinda grasp what you are talking about , my cloner and veg room will be outsde of the grow room . I have a 12x15 building ,in the corner of the inside of the building is where I will have a 6x6 flower room cause I only have the one 600w , and I am building seperate boxes for the cloner and veg ,I am going to try stink buds design ( aero/nft ) , so man ive been kicking around vertical light hanging horizontal ,well im sure you know its freakin maddening trying to figure all this out man , Anywho man thanks once again . PEACE !