Is this white water mold


Bronze Supporter
May 25, 2016
Fort Wayne, Indiana
Are you using powdered "shock"? I used to use that before switching to the methods recommended on this site. Sometimes, the product would gather together like that on the surface of the water. I don't know the scientific reason for it!

But have you tested your water? My guess is that it is out of balance, causing the flocking effect.


Mod Squad
TFP Expert
LifeTime Supporter
May 11, 2014
Franklin, NC
What are you using for sanitation? Chlorine of Baqua?

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