yellowing water?

[Dez]

Using a high quality carbon through a phosban reactor helps with this. I have noticed a big difference compared to my old tanks without carbon. I hope this helps. I use the pelletized carbon (ROX). It's a bit more expensive but I think you pay for what you get.

[fencer]

ozone works too

[tlo]

1+ on the carbon

[Wayne]

One more vote for Carbon, a day or two water should be nicely polished. If you run carbon I believe you arn't supposed to keep it in there for more than a week, otherwise it will leech out everything it absorbed...

[madkeenreefer]

Run Carbon And UV, should get it cleared up