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Old 20-07-2003, 03:12 AM
Rhino
 
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Default Oxygen in biofilter

I have a question to a problem. The breaker that my pump is on keeps tripping.
I know the reason and I have an electrician coming on Monday. As it happens I
have been able to discover when it trips fairly quickly and so far no harm no
foul. The pump is on another circuit for now. Once before when my pump cratered
and for the four days before I got a replacement I keep airstones going.
My academic question is:
How long will the bacteria in the filter system live without constant aeration.
I an using an up flow water column that flows through window screen media then
through a heavily planted top layer "veggie" filter then to the waterfall
outflow. The incoming water water had a venturi to add O2 before it reaches the
filter media. When the pump goes off, the filter is still under water and in
the dark. At what point does the bacteria start dying and your filter is set
back along with the attendant problems? How long without constant water/O2
movement before the filter is toast?
Rhino



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