Hi,
I am a newbie here,I was checking the DIY ideas when I came across this one.
For a long time I tried different ways to diffuse the co2 into my tank,here is a thread on a really cool way to do it.
I do it this way in my 20l,and I have thousands of micro bubbles floating around in my tank!
I have only been doing it for a week now,so I can not give any judgements on it,other than to say,the bubbles are really-really small and float all over the tank.