"amosf © Tim Fairchild" wrote in message
...
jd wrote:

Undergravel filters are fine, *if* you have appropriate flow and a decent
filter plate. If you can keep the water flowing, and avoid dead spots, a
good UG will turn your entire gravel bed into a bio filter.

If you have a aspare tank to play with, try this: set it up, with the UG,
but don't turn on the UG (powerhead, air drive, whatever. Leave it off).
Note that you'll have to have the water level below the top of the
exhaust
tubes for tghis test.

Get the tanks set up, and throw in a bunch of trash fish (feeders).
Watvch

Trash fish. hmm. So what do you do with the trash when finished?
==================
I hope they're not being tossed down the commode.......
--
ZB....
Frugal ponding since 1995.
rec.ponder since late 1996.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
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