Zoas and dirty water-

[Sir Patrick]

^ I am experiancing the same thing.

In my "dirty" tank (elevated po4 and no3) my zoas were all ugly, and didnt grow very well.

In my "clean" tank all my polyps look stunning! Wide open, all the time- very nice colors!! Mine have smaller polyps than normal and do not stretch either. I do feed heavily though...just keep the water quality much cleaner than in the past.

[iyachtuxivm]

I have tons of zoos in my tank in differant locations.The one thing they all have in common is if I skip the weekly water change they start to close up and look very unhappy. My nitrates are always low dont even register on my api test. So I guess I am saying i think they are happier, healthier, more vibrant in cleaner water.