I know this is a little out of order for this group, but I know that many of
you deal with large to medium size ponds all the time. And winter tanks of
this size every year.

I just purchased a used 850 gallon aquarium,
http://www.noahs-marine.com/aquarium/ and need to figure out what to do for
a filter. This tank will have several FW game fish, Bluegills, Crappie,
Perch, Bass, Catfish & Northern Pike. Besides all the politics and comments
about FW fish in captivity, ALL of these fish were born in captivity and
have never experienced real water.

Anyone have suggestions on an appropriate size and type of filter for this
system? I would prefer a closed loop type of system, canister or pool sand
filter, however I have been toying with a wet/dry sump or trickle filter.
It seems the consensus of rec.aquaria.freshwater.misc lean towards the pool
filter, but how much capacity do I need for this tank?

I know I will have a pretty heavy bio load with these fish.

GPH? Filter size?

I see 17" to 31" - 3/4HP to 1.5HP - Flow rates in the 25,000 to 50,000 GP 24
hour

What about noise levels? This filter will have to be inside, is the noise
tolerable?

Question about backwash? Is there enough pressure to pump the backwash up
10' and go 30 feet away?

Thanks I really appreciate any and all comments about this project.
John Lange