What u got on my 40??? homie

i got a 4x4x8 grow room its enclosed but not completly sealed... my question is the door is cracked at the bottom of the room and i have a fan on the inside suckin in air from the garage.. theres a window right by my box and the air that comes in gets sucked in threw the bottom... i there are also a couple crack at the top of my grow box so im guessin that air is exiting out of there.... im runnin led lights and there is no heat i can control my humidity and temp to whatever i want it at but do u think my plants will grow healthy or do i have to put an intake and exhaust fan in????? plus rep but not if it aint benificial info or imput.. thanks

heres my grow my plants are coming along great and theres just a few nats im takin care of... since my plants are doing great i think wouldnt that mean that my room with no real ventilation is good enough meaning my plants are growing and growing good in the conditions there in will this have an effect later in the grow or will i b cool
https://www.rollitup.org/grow-journals/296704-first-grow-let-me-know.html

I got 5 on it bro!!! your better off to have an intake fan than exhaust since yuor runnin l.e.d'swhat kinda "crack" we talking bout?? 1/2 in.?? less/more?

intake and ehaust if you can...WATCH FOR LIGHT LEAKS sounds like your 'ventilation-cracks" might cause hermes=seeds

the cracks are small i say one on the bottom about 1/4in and on top even small but there just n a few places and only way i seen cuz in my garage with lights off u see the leds lol shinin threw but how big of fan or shit do i need???

just a decent lil box 12"-18"fan otta work!! just make sure when you go to flower no like can come in !!!

You definetely want to get any crack sealed up so absolutely no light comes in, besides hermies it will slow/delay flowering and other potential problems. Of course it's always better to have both intake/exhaust, but if you put a small oscillating fan in there you could probably get away with it, but you gotta seal that crack up before flowering. Besides that wish you the best, Ive never used led's so Im interested to see how things turn out, let us know...Peace!

so should i just go with an intake or outake???? and how much is this gonna cost?? if its cheap i might be able to do both but im kinda way to many 40's deep on this project and if i did just do an intake could i just cut holes in the top of my grow box?? im completly rookie at growing but a fuckin pro at burning it lol so fellas shoot me down with what i need to do to fix this... i got $400 in light $100 n the box without ventilation haaaa, $100 in seeds but u already knw imma grow my kush, and atleast 100bucks in soil, buckets, nutrients, thermostat fan/heater n shit so idnt want to fuck up my grow cuz ventilation but id like to try to keep it low price on this.

INTAKE!! then spend a few bucs and get a regular walmart house fan !! 20 bucs tops!! I wouldnt cut your grow box!!

If it were me I'd seal up the cracks, cut a hole for passive intake(no fan) in the bottom part of the box, and a hole in the top part of the box for exhaust (with fan). Anyway, good luck with the grow and getting people to put in on the 40. I've got a 40 of bud right now to go with my white light hash joint. Woo woo

lol ya i went with that title cuz i knew people would open the thread becuz of it but how big of hole n the bottom u thinkin?? and how long do u think i have untill the lack of ventilation will start fuckin my shit up????