I've never owned an AquaC, so I can't comment on them. I run a Euro-Reef CS6-2 on my 100g reef and it's one great skimmer! As EmilyB mentions, if you're looking at a high bioload, you may want to step up to a CS6-4, or even up to the CS8 series...at least get one with the Sedra 5000 pump instead...