N nofunnynickname Active Member Jun 10, 2008 #1 My local hydro shop guy says that if you raise your ppm of co2 all the way to 5000 for about twenty minutes it will kill all pests. Anybody heard or tried this?
My local hydro shop guy says that if you raise your ppm of co2 all the way to 5000 for about twenty minutes it will kill all pests. Anybody heard or tried this?
LoudBlunts Well-Known Member Jun 10, 2008 #2 i've heard of it...but never did it. thought it would be very wasteful!