I'm not sure how you hope to work your carbon resevoir. There is a good likely
hood that the water will pour right over the carbon, rather than flow through
it, but you didn't include any specific details to that zone.

thats actually a good way to run carbon on a reef, assuming that was his intent. it
removes some of the negatives given to carbon in a reef setting, another thing is to take
the square shaped carbon holder turn it into a V and put slits on the side away from the
skimmer allowing a good portion of water to flow over the carbon and a good portion to
flow thru the carbon. just a different view, either way probibly works good

The final baffle before the pump could be as tall as the inner one (12") which
gives you a little more water in the return zone. Which allows for more time &
evaporation to occur. One person's sump currently is so small that she has to
top off 3 times a day. Might as well install an auto top-off device than put up
with that!

I have a 10g setup that way, the auto topoff keeps it up, but w/o it there isnt much room
between full and empty bout .5gal

Other than that, I think it should work out quite nicely.

me agrees

Marc


--
Richard Reynolds