Water film

[mikesilverado8888]

How do you get that film on top of the water off?

 

[Bowin]

Angle your pumps or return to give a little surface agitation.

 

[cloak]

and get a protein skimmer if you don't already have one.

 

[RMS18]

I have tried both of what was posted none have worked. I have 2 pumps breaking surface and a protein skimmer yet still have a film... following along...

 

[ReefMadScientist]

I had a film on the glass where the water level would be. A good clean up crew got rid of that. Never had an actual film on top of the water though...

 

[don_chuwish]

More info about your system? Is it an overflow/sump system or is it maybe HOB or canister filter?
I'm sumpless, one tank uses a HOB filter and the other a canister. I used to have a slight surface film but fixed it with a filter intake attachment that skims water from the surface. Just like this one:

But if you have an overflow to sump setup, I can't imagine how a surface film can develop. It should all be going over the edge.

 

[brownsalt92]

When I had a film of cyno on my surface of the water. I took a power head and let go close to the surface so it sucked some air and it got rid of the fil in a hr never came back I increased flow with a dual power head and the single power head I have breaks the surface it just doesn't airate it anymore.