01-08-2010, 09:01 PM
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I'm new back to the hobby - fourth time in - and in my former three lives, I always had a UGF and a canister jobbie working away. In a well planted aquarium the plants use the waste to create their food. I do know the UGF has fallen out of favour.
If you ever cleaned your under gravel out, you will remember there was always a great deal of slimy sludge under the plate, so I can see why it has fallen out of favour. But what I'm curious about was that before the under gravel plate, there used to be just under gravel pipes, surrounded by gravel. I'm wonder how efficacious that system was; maybe the pipes did a better job than the plate?