A couple of things to consider: Are you looking at putting this in full sun?
Partial shade?

400 gallons isn't very large. What they say about aquariums applies to
ponds: the larger they are, the easier they are to care for. Once you get a
pond established, you'll wish you made it larger.

Do you want to have a falls? Use a BioFalls filter and you kill two birds
with one stone.


"Suggs" wrote in message
...

Hi all

after many years of keeping fish from tropical to a very large
sal****er reef aquarium (400 gallon tank in the lounge) i now fancy a
pond, i cant be bothered to did a big hole so i fancy one of those
above ground kits with the timber surround they do a 400g model, anyway
can anyone advise a good way to filter this type of pond i dont want to
spend a fortune as its not going to be heavly stocked just a few gold
fish or small koi, will i need a uv to keep it clear and from an
electric point of view can i run a exterior grade cable from a plug or
spur in the house to a water proof junction box out side then split it
to power a filter and pumps uv lights etc, any views on this type of
pond is welcome...

thanks
Harry


--
Suggs