Originally Posted by Platiesareawesome
So, according to most of you guys an aqua clear or a fluvial c series for a power filter or a fluvial or an eheim for a canister is probably best, correct?
The Fluval C3 will give you a better result than the AquaClear50 for crystal clear polished water which equals the clarity of a canister filter. I have both. The AquaClear50 moves water bottom to top and has an initial sponge that is the same thickness throughout for catching particles. The FluvalC3 moves water from back to front using a pad that goes from coarse filter to a second "fine debris" polishing pad. It also has a trickle filter on top of your biomedia.
That is why Aquaclear claims 3 stage filtration while Fluval C series says five stage.
In either filter, the carbon is a waste of space. For best results, in a Fluval C ... use Purigen instead of carbon, ....... In an AquaClear ....... use some kind of polishing pad in the middle and Purigen if you can get it to fit.
If you upgrade to an AquaClear70 ....... which moves water from bottom to top rather than back to front like the FluvalC series, you do have room to get your water polished due to the extra 1.5 inches of depth in the plastic filter casing in which you can put dense polishing floss plus Purigen.
In a tank less than 55 gallons, a canister filter is a complete waste of time. effort, leaks, and cost when a Fluval C series will give you the same end result.