Hey guys, I know this kind of thing has been done to death, but I just wanted to make sure that my design was acceptable. And, of course, many eyes makes design flaws shallow.
I want to put a 10 or 15 gallon tank under my 55g tank to act as a sump, with an overflow box supplying water to the sump, and a pump to pump water back into the main tank. I'm also thinking about keeping yellow shrimp in part of the sump, as a kind of freshwater refugium. I'm not super sure about it, but in my pics I added a foam prefilter onto the pump, just in case.
So, have at it!
Picture 1 is the first design I came up with
and here's another design,
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