C _Cal_ Fish Crazy Joined Nov 1, 2005 Messages 231 Reaction score 0 Location Southeast Michigan Feb 17, 2006 #1 I tested my tap water because I was curoius, and it has more co2 then my tank that has co2 system, how can this be?
I tested my tap water because I was curoius, and it has more co2 then my tank that has co2 system, how can this be?
I iggy01 Fish Crazy Joined May 12, 2004 Messages 381 Reaction score 0 Location England Feb 17, 2006 #2 It isn't unusual for tap water to come loaded with CO2. That's why you should let it sit in an open container for 24 hours or so before testing to get a true pH reading. HTH.
It isn't unusual for tap water to come loaded with CO2. That's why you should let it sit in an open container for 24 hours or so before testing to get a true pH reading. HTH.
