using glycerine your not going to slow down the c02 going into the tank, you'll just get a wrong reading to how many bubbles your producing.freelanderuk said:i used water but the bubbles where to fast to count so i now use glycerine it seams a lot better
stuworrall said:I used to have a Sera Bubble counter that was semi sealed with Glycerin so its not a new thing and it wont affect your co2 delivery so not sure why people are saying this. Every bubble counter is different so will produce different sized bubbles at different rates anyway? You should be using a co2 indicator to get green/lime green to check your co2 anyway?