Get some 6inch clear PVC and some elbows! and its done!
http://www.eplastics.com/Plastic/Extruded-Plexiglass-Acrylic-Tubing/ACREXT6-000X5-750
http://www.usplastic.com/catalog/item.aspx?itemid=34565&catid=440
like the guy said it's not cheap
Dead or sick fish may go unnoticed in the elbows, which is the deal breaker. Once had an ich break go unnoticed until it was too late because the infected fish hid in those elbows because they liked the extra water flow and darkness.