"Sean Dinh" wrote in message
...
I've been to Aquascape site, yet couldn't find any information regarding
what went inside the
biofall. If you worry about killing the beneficial bacteria, try cleaning
half of the filter. Then
clean the other half 2 weeks later. The other option is to stop feeding
the fish, and clean the
filter now. Resume feeding 2 weeks later.
snip

Or take the output of your pump and clean the filter outside the pond with
pond water. Put the filter back on-line, and then top your pond off. Minimal
filter death that way.


--
BV
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