The pump is at the bottom of my pond (3' deep)(and below lots of
plants). It pumps through the filter which is outside of the pond.
How do you net the fry from the filter if they're so small? My filter
is designed with a backwash-lever to clean it: I flip the lever and
the pumped water is diverted to flow in the opposite direction,
carrying the silt out a different hose, which exits into the garden. I
could put a fine net there, but it would catch tons of gunk in addition
to the microscopic fish....