Liakern;36198 said:I actually made a co2 "diffuser" that goes under the gravel. one silicone hose supplying the co2 to the diffuser and one hose goin from the diffuser to filter inlet. The hose goin to the filter inlet is ONLY drawing water to ensure that there is no stagnent water and to help circulate co2 rich water.
My favorite aspect of making it this way is no addition electrical outlets needed and co2 levels are constant. Any access co2 is just overflown and escapes to the surface
Its about 12"x4"x2" and lays flat on the bottom of the tank. cover with substrate and its gone.. no eyesore... It could easly be built to 1" thickness rather than 2" but this is my first attempt at making a good deffuser and refinement is in order but the prototype is deffinatly effective. more importanly consistant.