Sump Or Wet/dry Filter

[Wolflife]

What is the pest Filtartion A sump or wet/dry?

 

[SkiFletch]

I use a sump

 

[Wolflife]

I use a sump

What do u have in it... do u use sponge??

 

[SkiFletch]

Deep sand bed, protein skimmer, chaeto, and some bubble walls