Here's an idea I had that would work well for a 5' tank and could be adapted for bigger or smaller.
The outline is obviously the tank
The center rectangle with the goofy lines cutting through is an UGJ setup of PVC
pipes with holes or slits cut into it. I plan to use a heavy sand substrate that would hopefully not be moved much by the water. Maybe I could mix coral or gravel in to help...
The grey boxes next to this are the powerheads pumping into the UGJs and the intakes up above them with prefilters
The red rectangles are heaters
The light blue spraypaint in the back is a bubble wall using 2 28" air stones with their own designated air pumps (light blue rectangles)
The long grey and blue rectangles are a HOB
The ridiculous construction with the circle and the darker blue lines is a canister filter.
I want to use lots of rocks and driftwood in the tank and lightly plant it.
I was thinking of painting the back of the tank black. Would that look good with the natural decorations and the rear bubble wall?