I have had my Reef Octopus 6″ Recirculating Skimmer (DDNW-150-6530B) up and running for a little over a year now. I have to say that it’s worked flawlessly since it was installed (10/2011). It’s still the quietest skimmer I’ve seen. Hopefully someday I can put all the maintenance equipment in a room and not have to look at it, or at least that’s what my wife says. 😉
I came home from work the other day and noticed the Automatic Top Off (ATO) did not turn on which caused my sump level to run low thus causing my return pumps to pull in some air. The tank was pretty full of micro bubbles and lots of coral slime. Soon as I triggered the ATO life was good again.