I personally like the AquaOne ranges - you just need to watch the power of the filter pump compared with the tank volume.
I have a 65l and a 34l, and they use the same pump, meaning that there is pretty much double the turnover in the smaller tank, so if you're wanting a fighter, they can struggle a bit - in the end, I've got a smaller submersible pump, and canibalised bits together to make something more appropriate.