Thanks for the prompt replies. I was thinking of installing one of these in my 180, currently filtered with 2 XP 4's. I'm not getting the polished water I use to get when I used a Tidepool II and XP3. The aquarium was relocated to the living room where hardwood floors were recently installed and I didn't want to take a chance of any spills using a wet dry, for now. Do you think the AC110 will do the trick?