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Has anyone ever tried putting an external water pump downstream of a cannister filter with a lesser flowrate pump than the external? I am wanting to try to boost my flow form my eheim 2028 filter so that i can run a fluidized sand bed filter and also a aquamedic 1000 co2 reactor in series/parallel to one another. i was planning on adding ball valves and a bypass loop around the FSB filter so that i can modify the flow through it to optiumum levels. I would like intall a fractionating impeller water pump like this one:
into the output side of the CO2 reactor with the impeller on the inside of the reactor (like a protein skimmer) so that turbulence is created and the CO2 is absorbed into the water column. I have seen a 400$ co2 reactor doing a similar thing. i am wondering if the 350gph flow pulling on the output side of the eheim will damage the eheims pump / impeller assembly?
also, i would be using the eheim as mechanical filtration only (floss / filterpads / cylinders) with e FSB doing all the bio. would i likely need to make a custom set of intake / outake tubes of a larger diameter than the stock eheim parts so that i can get greater suction flow rate on the intake and a pressure drop on the outake so that it is not TOO turbulent?
into the output side of the CO2 reactor with the impeller on the inside of the reactor (like a protein skimmer) so that turbulence is created and the CO2 is absorbed into the water column. I have seen a 400$ co2 reactor doing a similar thing. i am wondering if the 350gph flow pulling on the output side of the eheim will damage the eheims pump / impeller assembly?
also, i would be using the eheim as mechanical filtration only (floss / filterpads / cylinders) with e FSB doing all the bio. would i likely need to make a custom set of intake / outake tubes of a larger diameter than the stock eheim parts so that i can get greater suction flow rate on the intake and a pressure drop on the outake so that it is not TOO turbulent?
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