02-19-2014, 04:23 PM
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Originally Posted by Blaxicanlatino
I built a DIY C02 generator (with the yeast and 2liter coke bottle and stuff) and i hooked it up to an airstone and placed the airstone under the filter intake (so the bubbles would get chopped up by the filter propeller) but I noticed that the airstone is getting a clear film around it. SO i want to remove the airstone and find another way to mix the the co2 better into the tank. How do you make a cheap diffuser/reactor? thanks you
Believe it or not, plain cotton makes a great diffuser. I took a small filter media bag and put a small cotton ball in it from an old medicine bottle (about the diameter of a quarter.) Next, I ran the airline to the middle of the cotton ball. Secured it with a small rock on the floor of my tank. This produced very fine bubbles, and very LOW
pressure is required for a steady flow unlike ceramic and other diffusers. Perhaps best of all, the cotton is easy to replace and costs nothing since we all have some lying around the house somewhere.