Grow tent ventilation help

Hey I have a 3ft x 3ft x 6ft tent and have a 6inch inline fan as an exhaust out the top I'm trying to figure out how I should to my ventilation. I have total intentions on doing a passive intake but I have two questions

I have a 4 inch hole on the left side of tent and a 6 inch in the back. How do I go about proper ventilation without the light leaks and all the negative pressure and also how high should my settings be on my 6inch exhaust fan.

I have the same size tent and use 3 passive intakes. I have the ducting with the black lining and after a curve there's no light getting through. I cover the ends with nylons that works as a filter. The fan is on the lowest setting and the negative pressure is percect.
One of the passive intakes is actually the exhaust from the little veg tent next to the big one.

Chef420 said:

I have the same size tent and use 3 passive intakes. I have the ducting with the black lining and after a curve there's no light getting through. I cover the ends with nylons that works as a filter. The fan is on the lowest setting and the negative pressure is percect.
One of the passive intakes is actually the exhaust from the little veg tent next to the big one.

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I don't even have a way to get 3 passive inline unless I use the 3 rectangular meshed flaps they have around the bottom. But then I would not have any idea on how to deal with light leaks

You don't necessarily need three. It's just how I set mine up. I have the rectangular intakes covered because of the light leak thing.
The other option is to have a fan for your intake as well if there's too much negative pressure with one passive intake.

Chef420 said:

You don't necessarily need three. It's just how I set mine up. I have the rectangular intakes covered because of the light leak thing.
The other option is to have a fan for your intake as well if there's too much negative pressure with one passive intake.

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I mean even with a 6inch and 4 inch intake. The 6inch exhaust on lowest setting is causing too much negative.

Does that not look like too much? Lol

Put a carbon filter on your 6 inch and run that the top of your room. And with your 4 inch use that for your intake at the bottom of your tent and that work fine.

bryangtho said:

Put a carbon filter on your 6 inch and run that the top of your room. And with your 4 inch use that for your intake at the bottom of your tent and that work fine.

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Eh don't really need a carbon filter. I only have the one fan too. The 6inch. When you say use the 4 inch did you mean passive 4 inch hole?