connecting canister filter in series with external pump

[hk75]

Hi bros,

could anyone give me some advise?

Could i connect 2 x Atman CF1000 in series and connected to a eheim 1260 to drive the 2 filter. Both filter will not be running?

eheim 1260 > 2xcanister > co2 react > chiller > output

Atman flowrate is 1000 l/h
Eheim flowrate is 2400 l/h

1. can the canister take the pressure?
2. Will the flow rate decrease?

can anyone help.

thanks

[hk75]

may i know where could i get step down reducer from 25mm to normal 16/22mm hose. Got a eheim 1260, inlet to pump is 25mm, check out several lfs they do not have.

can anyone advise