I would loose the ugf
I have an old tank that has dolomite with a ugf
, and have been battling high nitrates for years. When I found this site, I got the advice to remove it. A month later my nitrates are better. When I removed my ugf
the amount of detritus that it trapped was amazing. As far as sand vs cc
It is personal preferance. CC
requires vacuuming. Sand can hold more life, therefore it will be a more balanced system. It also depends on what type of fish you are going to keep. If you want more of a reef, go with sand.