I been playing around with my DIY Co2 trying to find better ways of diffusing it throughout the system. I am aware that actual diffusers are available and pretty cheap...but I'm playing around with what I have.
My first setup was just a standard small air stone at the bottom of the tank in the general flow of water. And it seemed to work well enough.
My second setup was the same air stone strategically placed below the inlet on my HOB filter. The bubbles that floated, floated, and a lot of the bubbles got sucked up and chewed up and spit out into the water stream. A definite improvement best I could tell.
My third setup happened when I found an 18 inch bubble bar (the green tubes with suction cups etc) I have it placed at the bottom of the tank, and roughly level. Small bubbles are trickling out of both ends. They are not the micro bubbles I was hoping for, but small bubbles none the less. Now here is my logic that I'd like some opinions on...
If I'm getting bubbles out both ends of an 18 inch bubble tube, one could reasonable suggest/assume that the entire bar is full of Co2? If that assumption is true, could one assume that even though the rest of the pores are not displaying enough pressure to actually bubble...Co2 may non the less be diffusing along them?
(I know what some of you are thinking...go buy the $9 diffuser off amazon and enjoy your day. And I might, but I like messing around with stuff so humor me, lol)