Id rather have the aquis than the fluval, it feels much stronger, better built, than the fluval, its easier to bleed air from, and they come with black spray bars and longer hoses. The only plus points for the fluval is the quick release taps and carbon media
I bought fluval off a guy who ran it for 3 weeks and said it was s**t, for £20
Cant comment on the rest havnt tried em