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· Registered
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A filter is a filter... CO2 is CO2... I don't believe either are chosen based on what results you want. There are nice tanks running off HOB and even no filters at all, not to mention no CO2. I choose filters based on their track record, noise and quality. I choose CO2 based on the amount of work I plan to invest in the tank, I've run all my tanks on DIY CO2 for many years in the past, as long as you use enough CO2 bottles for the size of the tank and you keep up with new batches, there is no reason why you won't have just as good results as with pressurized CO2.

Giancarlo Podio
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