Mike B,

Thks for the links. Have read the EI sticky many times already, but thanks for the other links! and the encouragement...

Gerry,

I have a 140 RR Oceanic tank and the matching sump. The best way for me was to replace the sump with two canister filters. I just make sure to fill both overflows all the way up to match the waterline in the tank.; so, there is no waterfall effect.

Hi David,

Thanks for your suggestion.

What type of canisters do you use (size/model/etc) and did you simply connect the intake from the overflow to the intake of the canister and the output of the canister back to the original plumbing for the return? Or did you plug these and use 'over the back of the tank' plumbing?

I am keeping the overflows for now as I switch over to EI.

I have made many hardware improvements already with suggestions I have received on this and other threads.

This one can wait, until I see how EI goes with the current new setup.

I can always change it later as you did..........

Thanks again,

Currently, two eheim 2128 are plumbed with hoses to the exist holes from the bottom. There is really nothing to modify. The overflows are great. I use them to float plants and put heater, CO2 reactor, and CO2 diffusor inside.