I have read SO much conflicting advice I thought I would ask for some
more. Our new pond is coming along slowly but it is time now to do all
the plumbing. Approx 700 gallons, 3' deep, concrete block. A veggie
filter runs along one side. Two water intakes pull water from a skimmer
and from the bottom of the pond. Water returns under the veggie filter
and midway down in the pond.
The questions a
What kind of filtration, if any, do I need before the pump?

Do I need any filtration after the pump but before the veggie filter? I
assume the veggie filter won't do much in winter.

Aeration; there won't be any fountains or falls so I assume I need to
add some air. Air pump? Venturi "suction" type? Or perhaps a second
filter would do the trick, like a Skippy Filter.

Mark B.