Confused about co2 setup ! Do I need a controller ?

sehnsee

Well-Known Member
So I'm confused about the whole co2 setup...

I bought a 20lb tank, but not sure where to go from here.

I know I need a regulator, but do I also need a elaborate co2 controller ?


Im looking at buying this on eBay....

http://www.ebay.com/itm/400302213936?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649


it says its a complete setup but I don't see any controller, just a regulator.

Is the controller always needed? I'm doing a small 3k indoor grow.

please help!
 
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