This was an interesting design project so i will share it with you. Nate has a 55 gallon on an unusually narrow stand. i think the depth was around 10 inches. It has a brace in the center at back and about 21" of height in the cabinet but the door opening restricted sump height to around 15".
This is a two piece sump/refugium designed to maximize water volume, allow enough room for an in sump, or hang on sump, skimmer, and provide a large refugium to grow pods for his Mandarin.
We decided not to alter the stand and install from the back. therefor we must work around the centerbrace at back.
this is what we got
here is the water test.
a detail of the refugium return and overflow combo.
and installed. I still can't believe it fit.
I believe we added about 20-25 gallons of water to this system.