Worn Impeller, have you ever...

[reybie]

Originally Posted by bsmith

I have the white film on one of my tank. I even have a koralia pointed at the surface for agitation, not to rid the scum but for o2 introduction and it does nothing to help the scum. I also do 50% wc's/week with RO water. I wish there was an easy way to get rid of it but i honestly don't even know the source. I suspect my discus but thats just a guess.

In a previous post, I described my use of a small Rio 90 powerhead to pipe water up over the waterline to drag the white film down to the filter intake.

[S&KGray]

One easy way to get rid of surface scum is a molly or two.