[sslak]

Hrmmm. I don't think I want to plumb anything off the return other than the return itself.

If anything I will probably incorporate a filter sock on the outlet that feeds the Refugium.

I just read in several places that your refugium water shouldn't have high flow, which is why I have it on the throttled down drain line rather than running the entire flow of the sump through the refugium on it's way to the return chamber.

I "could" T off the return to feed the refugium, but I don't like that idea. I want to keep the plumbing as simple as possible, and maximize flow in the return line.

I also find it difficult to beleive that much fish poop is going to be going over the top of my overflow and down the drain. I would imagine the majority of that will settle in the display itself if anywhere.