My 180gallon reef tank has a sump. My 55gaollon reef tank has no sump. The 180 has so much small particles floating around and filter socks and canister filter does not help it clear up. The 55gallon is basically crystal clear. both use RODI water and are ATO. Mostly fed pellets and have basically the same water chemistry. What Can I do to help clear the water in the 180gallon tank. Keep in mind these tanks do not get waterchanges. Please give me ideas or is it a lost cause.


