W wirralbull Fish Crazy Joined Apr 5, 2011 Messages 271 Reaction score 0 Feb 6, 2012 #1 in a plant only setup can you use too much co2?
fivestarsellers1 Fish Fanatic Joined Jan 23, 2012 Messages 106 Reaction score 0 Location Bloomington, Illinois Feb 6, 2012 #2 I wouldn't think so! CO2 is not able to harm plants in any way
SO19Firearms Retired Moderator Retired Moderator ⚒️ Joined Feb 13, 2009 Messages 1,002 Reaction score 5 Location GB Feb 7, 2012 #3 As soon as you start wasting it....