this looks great UG, im starting to think low maintenance is the way to go. mind you i on't have many algae problems with my nano. just mainly on the flame moss. i'm going to be adding some orange bee shrimp to take care of that little issue.
you should see if you can get some different little shrimp for this tank. some thing not commonly kept.
also a 5lb cylinder would work, much better split then the ADA system. those little cylinders are just too small to handle two tanks for long.