Bioball question

[LilBabyEmma]

I orderd some marnieland bioballs for my eheim 2217 canister filter thats on my show tank.
I was wondering what order should i put them in my canister
Should the water flow through the balls then the pad then back into the tank or through the pad then balls

 

[Egon]

What would be the easiest to clean? My filter pads are on the top then bio-balls. It's very easy to reach in and pull the pad out and replace it. Bio-Balls never need to be cleaned so I put them on the bottom.

 

[swk]

With the limited volume of the 2217, I would recommend using seachem matrix instead of bioballs. They work best exposed to air, like in a trickle style setup.