hahah... I remember before I got into salt.. I said I'm gonna take this fw thing as far as it can go...Had a 125 set up w halides and full grown discus. It was pretty cool and could possibly rival some reefs. google takashi amano if you want to see what the epidomy of fw tanks are. CO2 addition, undergravel heating cables, pH controllers controlling the co2 solenoid valve, full rodi for the discus, black water tannic acid additions hahahaha. finally i caved and went sw but sometimes i miss the old calm fw.. that was my biggest thing.
it's different because the discus were slow swimming and there wasn't much current, and the vallisneria just slowly waved back and forth with the ebb and flow. haha.. i still have the old stuff.. I should set it up!