Got a AquaOne Aquastyle 620 with the trickle filter. Trickle filter is ok but will get an external around christmas (not enough flow) and I would have had a juwel rio but a tad expensive. The aquaone 620 has pretty much the same filter as its bigger brothers. But then there is always a big clearseal which are cheap and quality but then you have to buy all the lighting and filter etc...