ONJ wrote:

kewl...now as far as circulation....I was thinking 2 Hydor Koralias.....is
this sufficient? If so...how about their placement on a 4 foot tank?

Yeah, two of the 400 gph units should do the trick. Or one of the 800 gph units.
I don't know about placement; I have a single Tunze on my 125 gallon tank. It's
down at one end in the back corner. Some of the fish like to hang around that
end 'cause the flow isn't as strong in the front corner there. My firefish, on
the other hand, are down at the other end where the currents get chaotic.

George Patterson
If you torture the data long enough, eventually it will confess
to anything.