Sump design - exiting from a thread hijack...

[GreenSpottedPuffer]

I do not use baffles because my sump is a few rubbermaids and I never have micro bubbles because of filter socks. They are awesome! Just change them every three days or they get pretty nasty and will cause nitrates. My skimmer basically returns water within a few inches of the return pump but into a filter sock and like I said, I get no micro bubbles at all in my display!