Just one question, is the tank drilled at the ends for the returns? I have never done such a thing, but perhaps I should go and order one too.

I have a spare ten gallon tank, so I could have a sump too, just like the big boys. I could perhaps get rid of a powerhead, and hang my CPR refugium on the sump. I could even get really stupid, and get a skimmer, but that ain't likely to happen.
