Reddit mentions of Hydrofarm ACDF6 Active Air 6" Inline, 400 CFM Duct Fan, 6"

The best inline is one you can buy locally, and has a 3+ year walk-in with broken fan, walk-out with new fan, warranty. Grow/Hydro stores should have this. Also industrial supply. If your inline breaks, you can't wait 3 days for a new one in the mail. Much less sending it away for warranty repair.

If you are in a situation where you need to mail order, Active Air has been solid for me. Three on timers and one on 24/7 duty, no failures in 2+ years. Don't buy anything that looks like this.

Absolutely! You can get as crazy as you want with it, but there are some basics you need to figure out before you really start.

Where are you growing this plant? Do you have a space you're going to use? A closet, an unused bathroom, the basement? Are you going to be purchasing a tent, or maybe emptying out a dresser like this?

The light choice is one you can spend many (too many) hours on. LEDS have their benefits and drawbacks, as do CMH. Heat is more of an issue with CMH, but LEDs can also pump out serious heat. CMH is easy to know what to buy, no real dialing in the height, no worry you're not getting the right spectrum, etc. I'll probablu go LED at some point, but for now CMH is easier (for me). This is the CMH kit I started with. Ballast, bulb, reflector all included. if you have an option for the light, you'll want to get one that is 3100K and NOT the 4000K. 3100K is not as good for veg, but is great for flower. You can detatch the ballast from the reflector - helps keep temps in the tent down, since you can place the ballast outside.

How are you going to deal with heat? Lights run hot, and you WILL need to manage it at some point. Check my previous posts to see my light tube setup.

How are you going to deal with smell? Smell will be an issue, no ifs ands or buts. You can DIY carbon filters, but only if you trust yourself to do it right and hope it won't fail. You will need a carbon filter and fan to manage the smell. I'm running a 6" inline fan with a CAN33 filter. There is 0 smell from the exhaust, the filter is clutch. If noise is an issue for you, fans are decently loud running at full tilt. To work around this, a speed controller on a larger diameter fan, turned down to a lower speed, will reduce noise significantly while giving you the same airflow as a smaller fan on high.

You'll need to get soil and nutrients. Myself and a lot of growers really like Fox Farm Ocean Forest soil. FF Happy Frog is another good one. Get fabric pots if you can - lets the roots breathe a bit.

The above is very, very basic starting info. An enclosed space to grow; an exhaust fan and odor control; full spectrum light; water and nutrients.

Let me know if you have any other questions!

So I've put two Mars hydro 600 watt lights in a 2x4x5 tent and if I left it sealed up it will get too hot of course. In that tent I can get away with a 240cfm duct fan at the top vent hole of the tent and be in the 80s. I still have to leave the tents flap open or it gets too hot even with one clip fan and a large standing fan aimed at the tent door. This is in a cool basement and it's not even summer yet. I'm actually in the market for a couple of 300-400 CFL inline fans that are somewhat quiet if anyone knows of any. Looking at this one

I see you have 4" ducting but trust me you're definitely going to want to have this, thankfully 6" ducting isn't to expensive. Also buy these, so much easier than duct tape and these for managing the ducting. This and this too for supporting the inline fan and filter, the inline fan at full power will vibrate very slightly and I feel that the bungee cords help minimize vibration. I usually use zip ties for managing cords but also as a precautionary measure, I have a few loosely secured zip ties on my inline fans just in case a bungee cord were to become unsecured which that has never happened thankfully but you can never be to safe.

I have a similarly sized tent and I use this fan with this speed controller. It seems to provide very good suction and the controller does not cause the fan to hum or anything. I estimate 10+ full air cycles per minute with this thing going at full blast. I'm running a Mars 600 and a home built 240W COB setup to supplement, pulls about 500W at the wall and my tent is at about 75 F with 60% humidity. Intake air is about 62 F right now.

I would always go 6 inch, simply because that gives you the option to run the fan at 50% power and still get more CFM than you would with a 4 inch.

One thing to consider is the cost of carbon filters if you're worried about smell. My neighbors don't care so I vent outside, but a 6 inch carbon filter will cost at least $50 more than the 4 inch equivalent. Granted they can move more air and will last longer, but still certainly something to consider.

I installed a 6" inline fan in the attic and have the exhaust run to the return air side of the AC for the house. The closet that the servers are in has a large enough opening between the bottom of the door and the flooring to pull enough air to create a cold and hot side for the servers.

https://www.amazon.com/gp/product/B00KWYJQYA/ref=oh_aui_detailpage_o05_s01?ie=UTF8&psc=1

This fan

This pump

Right now it's venting outside but I'm looking into at least some filtration to not upset the neighbors.

That's a booster fan. It's purpose is to help airflow in long duct runs. It will not create significant pressure, and if you need a carbon filter to scrub odor it will not provide adequate ventilation.

It may be enough if you aren't using a filter, but it would depend on ambient temperature.

If you're on a tight budget, I'd look at this option

I understand being overwhelmed at first here, but I couldn't imagine trying to figure it out from a different language, so props to you! You can definitely build your own setup, or you could purchase a grow tent. The sizes range anywhere from 4x4x7' (or 4 feet by 4 feet wide and 7 feet tall), smaller, bigger, there's something out there for everyone. Some common lighting sizes with MH/HID (metal-halide/high intensity discharge, just different styles for different stages) bulbs are 400W, 600W, 1000W or so I've seen on here. You could also go with LED lights, but I don't know much about those. It depends on how many plants you'd like to grow and the size of your space.

As far as fans, I would get more powerful inline fans like this or this to actually move the air around if you're planning a bigger grow. If you're not too worried about a carbon filter, which it never hurts to be, maybe you could try making a DIY one with some supplies from your store and a guide from this sub?

Hope this helped, best of luck and please update us! (ps your English is actually fine and easy to understand)

I'd recommend getting the light fixture with an air cooled hood instead of the cheap reflector. https://www.amazon.com/dp/B07D8VV2ZR/ref=psdc_14252961_t1_B00P8P51ZQ?th=1

The lamp comes with a bulb, they are cheap, but they do work. At some point you want to get better bulbs.

Looks like you'll need an inline fan for ventilation. https://www.amazon.com/Hydrofarm-ACDF6-Active-Air-Inline/dp/B00KWYJQYA

The fan can be turned down using a speed controller https://www.amazon.com/ACTIVE-AIR-ACSC-Speed-Adjuster/dp/B007TFTITS/

You'll likely need to move more CFM than the fan you linked.

Just from a quick search of Amazon Canada, I'd go with THIS FAN, and THIS CONTROLLER.

I don't see any legit filters on Amazon Canada... or they are super-expensive. I definitely recommend getting a name-brand filter... that's not somewhere you want to cut costs (IMO). I'd try to find a hydro shop near you and see what they've got. Phresh and CAN are good ones... I know there are others.

You just need to make sure the filter is rated to handle at least as many CFM as the fan. The fan I linked is 400CFM... most (if not all) 6" filters will match up fine.

This Hydrofarm Active Air is the one you want. No bells. No whistles. Super well-built.