+1 planted with apistos, rams discus and tetras.
or
My next tank will probably be a low-light moss tank, moss walls, logs, carpet etc. with rams, cards and something creepy like like a african butterfly. Saw a setup like this online once and it looked sweet. You could do that too.
I can't imagine the cost of a tank like that running as a reef and all the stuff that you would have to buy to keep the maintenance and running costs down.