This took an entire day of work, but I finally got that new skimmer into place. What a beast! This is a Reefmania PS12-4 with wet neck option. I don't yet have the wet neck plumbed in and working.
So far, it hasn't skimmed much at all. Still breaking in, I hope.
The key changes from the G6 are:
1) The volume of the skimmer is almost 2x
2) There are 4 Sedra 9000s instead of 3
3) All 4 pumps are recirculated and out of the water
4) The skimmer is now directly gravity fed from the main display
I'm a bit concerned that I'm flowing too much water through, so I intend to order a 9" height extension to the skimmer which should result in a dwell time of about 2 minutes based on chamber of 20 gallons and flow of 600gph.
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400 gal reef. Established April, 2007. 3 Sequence Dart, RM12-4 skimmer, 2 x OM4Ways, Yellow Tang, Maroon Clown (pair), Blonde Naso Tang, Vlamingi Tang, Foxface Rabbit, Unicorn Tang, 2 Pakistani Butterflies and a few coral gobies
My Tank:
http://www.canreef.com/vbulletin/showthread.php?t=28436