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If you have two 4 inch intake holes at the bottom of your cab, one 180 cfm fan is not enough, if you are pulling through a filter you can cut that cfm rating down by 2/3's, and you want it to go through the light and through the filter? To do everything you want to do you will need a 240 or...

You don't need a seperate intake fan, passive intake is all you need. You will however need a bigger fan then 97 cfm, not possibly, not maybe, but you will need more than a 97 cfm fan to pull air through your filter and provide air exchange the cab. What you should do is use that 97 cfm fan for...

I run a 400 watt HPS with a lumatek 400 watt digital ballast set to run at 430 watts, in a space 20 inches deep x 4 feet wide x 6 feet tall with no problems with heat at all, Mine is a Home DePot wardrobe. You just need an air cooled hood. Also I like your idea about putting your ballast next to...

$125 IS a very reasonable price for a 6 inch inline fan with a carbon filter.

I didn't buy bulk, everything I buy is by the liter, it's just a lot of different stuff for different peroids in the plants growth. And there are a lot of expensive supplements, roots excelerator is $90, Bloombastic is $90 it adds up and that's only two. One plant doesn't take that much nutes...

You also have to look at how many ounces your getting from hydro vs soil, what's your soil average green? I use a pretty expensive nute schedule, atleast the initial cost. I spent about $500 on nutes to start my first grow, but it lasts forever and I figure my cost per grow for just nutes is...

With a 170 cfm fan you will have to suck the air through the filter and then out of your box. diagram: AIR ---> Filter ----> Fan ----> Out ----> If you had a bigger fan, say a 440 cfm, you could suck the air out of you box and blow it through the filter, but filters kill the fans power, and...

Take a few feet of flexible ducting, spray paint the inside of the ducting flat black, and bend it at a 90 degree angle twice like an "S", and presto no more light leaks. Also here is a google link to light traps for grow rooms, apearently you don't know how to use google, it took all of 10...

What he said!

Here's what you need to grow in a waterfarm Waterfarms are $60 each, I use a Powergrower Eco they are the same thing just bigger for $70 on amazon. Better air pump - GH dual diaphragm air pump $63 2 airstones $10 a good pH meter $90 a bluelabs truncheon $90 for measuring EC and PPM Nutes -...

Well it depends entirely on the size space you have, my understanding is that 3 square feet is what you would need to allow a plant to grow to it's full natural potential, under perfect indoor conditions. Take a look at all the seed bank seed descriptions, yield is always quoted by the sq...

I've never grown in soil so I can't help with that, but I'm sure you can find all the info you need here :weed:

1 plant with 3-4 weeks of veg fills up my scrog screen, that plant is only 11 days into flower and I've almost filled a 3 foot wide screen. I leave the 6 inches on either side free for circulation. When I started building my box, I too thought I could grow 2 plants at once in that space, you...

A standard door frame, at least in my house, is 30 inches. Just out of curiosity why only 5 feet tall? 6 foot or more and you wouldn't be handicapped at all by low clearance. Here is an old thread that I used as a foundation for my build (ignore the fact that he starts off with computer fans as...

Sounds like a plan!

You won't need a fan speed motor controller with just 1, I use that for my air cooled light and don't need it to run anywhere near full speed to keep my light cool. I run my air exchange/Filter fan 24/7 full speed throughout the grow, you don't want stagnant air or loss of negative pressure...

With only 5 feet of head room you would pretty much have to scrog, I have 6 feet of head room and I lst'ed my last grow instead of scrogging, and it over grew my space which ruined about 90% of plant due to mold, caused by bad air circulation. Now I'm sure someone who is well versed in LST would...

I have two 4 inch Vortex inline fans, they don't sell them at HTG anymore I see, but between the two, inline is supposed to be quieter. Make sure you get a flange for it as well, whatever kind you decide to get.

I can't comment on that setup, but I have been using the truncheon for 3 years and it's fantastic, so I image the Dosetronic would be a quality device as well.

With only 5 feet of over head you're probably better off with the cfl's, but I would always go with a digital ballast and HPS/MH if given the choice. So if you can go taller you'd get better light coverage with a HPS. I cannot stress enough the need to have good ventilation and control of the...