11-09-2009, 11:20 AM
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Originally Posted by dedvalson
I am installing a pressurized co2 injection system on my 90 gallon planted aquarium.
I have looked at the variety of co2 diffusers and reactors. All of the diffusion devices involve passing the co2 through lots of baffles / bioballs / spirals etc.
It seemed to me that I could acomplish the same thing by injecting the co2 into the input of my under the tank cannister filter. It would then get sucked across all of the filter media and would get further diffused by the motor.
Am I overlooking a reason that this wouldn't work?
Instead of injecting any gas to canister since canister should have optimal O2 for aerobic nitrifying bacteria, how about injecting CO2 into return tubing as venturi when desired to inject manually or automatically hooked up to pH controller via solenoid valve (no diy CO2 generator when using solenoid valve otherwise could have explosion or have pressure relief valve).
Only problem with diy manual CO2 injection is how one will count the bubble to ensure you are not overdoing/under doing unless have CO2 pass thru independent bubble counter?
Last edited by cerianthus; 11-09-2009 at 11:23 AM..