Thanks guys!
How about the "flow control" pics?
There are 3 Oceans Motions OM-4s that create current and motion in the tank.
Notice all the plumbing. ( My chiropractor has been a busy man

)
The center OM-4 is for the return from the sump - it has a drum that makes the water come out of the OM - Omni Flex Nozzles one at a time, and moving from left to right, adifferent nozzle every 15 seconds. This I hope- will give a sort of "washing tide" that pushes debris toward the overflow - on the right of the tank.
Note the nozzles - they - like all of Paul's stuff at Oceans Motions - are works of industrial art. The machine work is amazing to see in person. The nozzles allow you to aim the returns with more options of direction than the black knuckled Loc-Line. Wish they were black......
The ouside of the back panel is covered with the darkest window tint film I could buy at Lowe's. Seems to work pretty well. Easy to install, no spray paint!
And the overflow takes the water to the sump via the 2" black flex PVC going into the right end of the picture. The pipe coming from low left to high right at an angle is the return from the sump. It is pushed by a Reeflo Barracuda. Fed into the center OM-4 under the aquarium cabinet.