My wet/dry filter is under my tank, but the way it's facing, I wouldn't be able to add a refugium unless I used 2 water pumps. I tried to draw a figure of what I would like to do with the setup under the tank.
The only reason for this is because the drain pipe won't allow me to push the wet/dry filter to the left side of the tank... and I really want a refugium!
The only reason for this is because the drain pipe won't allow me to push the wet/dry filter to the left side of the tank... and I really want a refugium!