help intake and exhaust

so i have been just using one small 40 cc exhaust fan for exhaust (blowing air outside), i have been flowering for a week and my plants are drooping like they aren't getting fresh air or something? so my question is, do I need another fan thats blowing air into the GROW TENT? I have a homebox grow tent


if more details are needed let me know, reps for all helpful posts

You really should have an intake, an exhaust and a circulating fan inside your tent. Rule of thumb is to replace the tents air once every 3 minutes. Hope this helps. What are your temps and humidity by the way?

I know this is going to sound dumb but I havn't used a humidity or temp in about 2 or 3 grows, I actually have a thermometer but havn't put new batteries in it, ill do that right now. I havn't had a problem growing this way until now, I actually dont have a ph checker either. I do have a intake I am going to put in right now, should it be on the bottom or the top of the tent? Thanks and REP!

so the temp is 80 right now but the grow tent has been open for a few hours

so now that temp has settled and is working correctly I am at 85

update:

so now I have a intake on the bottom the grow tent and a exhaust on the top, I have a small fan blowing from the top onto the plants

Excellent. You may find that you can luck a few grows but when you have a problem it will be hard to diagnose. You really should get a pH meter. 85 isnt too bad but it could be better, see if you can keep it at 80.

Is it an ebay tent? I have heard issues about gassing off from the plastic they use.

Are you using a EC meter to measure your nutrients?

im using the homebox clonebox, i have no meter to measure nutrients, im using foxfarm and i clean the reservoir quiet often, next grow im def gonna get a humidity and ph meter, thanks, what can i do about the noise of the fans?

quick tip you should use a fan blowing up thru the leaves cause the gases build on the bottom of the leaves this will push bad gases to the top to be vented.

dropping can be caused by many things heat, air, lack of nutes try to measure these things so u can more quickly fix small problems like drooping leaves.

bluntdocter said:

quick tip you should use a fan blowing up thru the leaves cause the gases build on the bottom of the leaves this will push bad gases to the top to be vented.

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thanks, ill prob have one fan on bottom and one of top

Can you give us a few more details about your grow? Lights, feed schedule, I'm assuming your growing aero right?

ya i have 2 aerogardens each with 2 plants, I also have one huge mother plant in soil that i decided to flower, I have 1 140 watt CFL, 4 other 45 watt CFL, and 4 30 Watt ones, I feed with foxfarm about once a week every other watering...