My initial idea is to do a "coast-to-coast" style overflow. This would mean drilling two holes on the back wall for drain lines and one line for a return line. I will get black acrylic to make the overflow box or get one pre-made. The drain lines will tie together into one common line and drain to the sump on my 120. The return line will come to the center of the tank and split inside the overflow box into two separate lines and go over the edge of the box (or through a notch in it). These will have loc-line on them so that I can direct the nozzles.

This will probably have an arch-style bonsai stack in the tank. I want most flow provided by a single MP-10w ES. I can see making the arch and putting the MP-10 on the back wall so that it blows through the arch.
Does anybody have any thoughts? Suggestions and criticisms are welcome. I'd like to hash through a lot of the build before I cut any holes in this thing. This will either be a mixed tank or LPS with a rare nem if I can find the one that I want.

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