Have a new 275 gallon pond where I have the pump, pump through a
bulkhead in a 25 gallon tub..where I have an A/C filtering material at
the bottom of the tub and above the bulkhead...above the filtering
material I have the plants at different levels in the water...no soil,
then the water spills over on to a small waterfall. Will this suffice or
will it depend on the plants or will a layer of soil and gravel creating
a bog be better for the filter. TIA

a pic is at
http://arrow-pestcontrol.com/100_7258.JPG
--
Lar

to email....get rid of the BUGS