Cannister as FR

[Seawater]

Thinking of using a spare Ehiem cannister 2217 as FR, is it as effective as an actual FR? What r the the drawbacks? Has any1 tried? Tks.

[AhLoon]

Hi Seawater,

I was toying the same idea too...

Conceptually the way FR and canister work should be the same right? water flow thru the media at a constant rate to maximise effectiveness of the media...

I'm curious to know the drawbacks too. My take: I think can...

[Archilles19]

Canister filter will make a good FR compared to the actual FR. only thing U have to take care is to make sure that U have proper filter medium to prevent the media like Rowa or carbon from exiting from the canister. Look at the filter sponge in the actual FR.

Then of course theres the flow rate that U need to look into.....

If Ur using the filter own pump to pump in & out water than the slow flow rate might just make the impeller go bonkers....wat U can do is to remove the impeller installation ie. cover, impeller, etc....altogether then use a separate PH to pump in water.....nomally canister filter flowrate should be about 600l/hr & above so U might want to consider a smaller .....very small volume of PH ...maybe 200l/hr....

I tried it before....works well...especially for carbon but one set back is.....since the casing is green then u cant see well wats inside....&....that canister is still in good condition thats why i stop using it as FR & put aside for emergency.....