then i guess ill just sit a scimmer in the sump and attach a small feeding pump to it. I am planning on making this kind of scimmer:
http://www.hawkfish.org/snailman/diy6inskimmer.htm
I am hoping to have one air pump drive the scimmer and some air stones in the refuge. And to have the main sump and scimmer all run with just one pump. Is it possible to move the scimmer to the other side of the setup and set it to scim the output from the sump/refuge instead on the return route to the tank?