when i set up the tank i put in larger gravel pieces with this filteration in mind - the pieces are large - i have two khuli loaches in there who i never see because they go through the gravel like a tunnel system.
So I bought a pre-owned 60l Biorb Life tank a few months ago and its all been running fine. just the odd algae bloom that happens but I've managed to keep that in check by telling the kids not to leave the light on as much during the day.
however i've had a standard tropical fish tank before...