Getting fresh air in

i have a terrarium that used to be a fish tank, and i have no way of getting air in... any ideas of how i should get air in? i was thinking of buying a little fan and cutting a hole for the fan to fit in at the top of the terrium. any other ideas?

 

I think plants take in the c02 and change it to oxygen. But Ya I would find a way to put a fan exhaust in, and an exhaust out.

 

You can't grow pot in a terrarium.

No drainage for one thing.
Pot grows way taller than any terrarium I've ever seen.
No light control.

 

Well, he could always get Lowryder

 

You can't grow any strain with no drainage and no light control.

 

your better off growing shrooms in a terrerium!! lmfao...

 

Well, yeah, of course he couldn't grow without drainage...I just meant for the short part...but uh, I know that in High Times they've MENTIONED people growing in terraniums, but they didn't explain how

Yeah, you would be much better off growing shrooms in a terranium...shroom season is over down here, so I know lab shrooms are in demand

 

a terrarium requires a catch drain and a pump- so screw it, go hydro.

Depending on size, a simple wick system may be near perfect for your needs. Hell, a rockwool cube in a tray of water needs NO drainage.

As previously stated, you'll need an in AND out airflow, not just for fresh air, but for heat control, (whatever the light source).