My 180 is not crystal clear. I am using 2- Eheim 1200 XL with Eheim pro media in one basket and bio home in another basket. I don't know if it is the filter media I am using or if these new Eheim pro 3's are not good. You know how there are Eheim people and there are Fluval people ? Well I am a Eheim person. But now I am having second thoughts. Anyone have experience with these Eheim's 1200 xl. They have two intakes and one return witch I am not crazy about ---just more tubing shown on the back on the tank. The water is cloudy--looks like it needs a UV or something to polish it like a Diatom. I think the water should be clear with out extra equipment. I am not running carbon and I do water changes once sometimes twice a week. Any ideas will be helpful.--------- Deep six the Eheim's or use different Media ???