09-05-2008, 12:20 PM
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This whole thing fascinates me. Is the main purpose to clean up the tank? I still haven't started on my 125 but I've got a spare 20 long and am now wondering if I should make a sump? What are the advantages and disadvantages? I have a marineland canister that I just bought and a tidepool I figured one under each overflow, I could use the pump from the tidepool and build a sump, right? I assume you'd still need airstones and maybe even a heater in the tank, anyway. Then again, to allow enough space for the water in the event of a power outage I'd probably need something taller than a 20 long so I might not even be in the position to consider it. I like the idea of plants and algae to help with nitrates. Maybe I need to consider a 30 when the dollar a gallon sales come up again?
I guess my main question is, would I get better water quality from a sump or is mainly for looks in the tank?
And, what is water polishing? Just floss, or the diatomaceous earth surrounding the bag? Cause that's a whole different kind of canister, right?