is a Fan used just for the heat???

say my grow space is at a perfect temp without a fan on would i still need to use a fan or what

Well some say that the fan mimic's the wind and helps your plants stems grow stronger, But I dont use one , plus if its inside you control the space , so I guess you get to make that call
 
Its important to get air moving in a growroom so the temp stays constant across the room. It also helps get that stanky air to the room exhaust port.
 
use a fan to get fresh air into your grow room cuz plants need fresh air, also makes bigger/stronger stems
 
Depending on how big and when you flower your plants you will want stronger stems to support everything.
Also, if it gets bumped or moved severely and you have week stems then you may end up with a wasted effort.
You can get fans for $4 at Wal-Fart to get your air moving and your babies feeling the breeze. bongsmilie
 
use a fan to get fresh air into your grow room cuz plants need fresh air, also makes bigger/stronger stems

There you go. Fresh air = co2. That is manditory - without enough co2 the plant will die, it's just that simple! All those other reasons are important too! People often overlook the "strengthening" benefit of a fan on the stem and branches, but I've seen many complain that their branches can't support the buds around harvest time. Weak branches need to be proped up - strong branches don't!
Just my $.02 worth!
 
definatly makes them stronger and keeps the air moving but u dont need a huge fan just enough to make a very small breeze will do alot for them there are alot of perks from using a fan
 
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