Venting question

Gonna be running a 210w LED in this setup with a 4 inch 190cfm inline fan pulling hot air thru a carbon filter out the top. Do I need another fan pulling air in? Or can I just put ducting in one of the smaller holes at the top and leave it at the bottom of the tent for the cool air to draw in from? Or do I need to get another fan to pull air in as well? Gonna have a lil clip fan for the canopy and probably gonna scrog this setup. Also is light proof ducting needed for grow tents? first time setting one up, just have done DIY closets in the past.

I just open the bottom vent opposite side of filter. Pulls in cool fresh air from bottom, sweeps across tent and rising to opposite corner out the filter. Works well for me.

thats what I figured I should do but the only hole down low in this tent is a 3 inch hole for wiring, all my wiring will be in the top tho

Sure that'll work too.

Axion42 said:

I just open the bottom vent opposite side of filter. Pulls in cool fresh air from bottom, sweeps across tent and rising to opposite corner out the filter. Works well for me.

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Yep. The lower the inlet the cooler the air.

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Axion42 said:

I just open the bottom vent opposite side of filter. Pulls in cool fresh air from bottom, sweeps across tent and rising to opposite corner out the filter. Works well for me.

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do you have light leaks during flowering? or do you have ducting going into it

I use night hours for flower and room stays dark during that time.

Axion42 said:

I use night hours for flower and room stays dark during that time.

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What do you mean? You have the lights on in your grow when its night time?

Lights off at 7pm, on at 7am. I dont go into the room during these times and door is shut, no lights on so I dont have any light able to leak in.

ok I see what you're saying. I'm having mine in my closet but plan to keep it covered sort of so this should work

Anon25314 said:

thats what I figured I should do but the only hole down low in this tent is a 3 inch hole for wiring, all my wiring will be in the top tho

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So is that diagram not the tent you have? Because that shows 3 vent flaps on the bottom walls.

coreywebster said:

So is that diagram not the tent you have? Because that shows 3 vent flaps on the bottom walls.

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Yeah it has those but im worried about light leaks for flowering

Anon25314 said:

Yeah it has those but im worried about light leaks for flowering

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Build a basic light trap out of cereal boxes for each vent.

Good shit man I will defo do that
Still waitn on the tent to come in the mail b4 i set everything up