All,

I have a 65gal RR tank but not the space for a refugium in the sump area so here's my idea......

the over flow is 6"x5"x30" tall, my pipeing runs up through this area. this was my idea - 4" of sand, cheato then the egg crate 3 to 4" in the overflow below my overflow pipe. which then goes into the wetdry into the sump threw the sump into my skimmer then returned back to my display????????? what do ya think i can post pictures later if needed...

Justin