[sevo88]

I have a 150 L planted tank with Eheim 2222 (500L/h). I want to add an external CO2 reacter and a chiller and worry that the filter flow will not be sufficient. I want to avoid too many hoses in the tank and therefore am thinking of adding a Eden 501 (300 L/h) in series before the Eheim. I shall feed CO2 into the inlet hose and use the Eden as CO2 reactor.

Can the group advise me whether the idea is sound? What are the effects of arranging two filters in series ? Any potential problems, particularly leak, airlokc and noise? Will the flow be 300 L/h, 500 L/h or 500-800 L/h?

Many thanks in advance.

 

[sevo88]

I would T off both the intake and return hoses and place the second pump and accessories in parallel to the existing canister filter. This way you are still using the existing tubes in the tank but not effecting pressure levels in the canister.

Hope that helps
Giancarlo

This is a very good idea. I shall take your advice.

Thanks, group.