Bubble film in sump

[jerallenttu1]

Anybody know what this slimy layer is that is forming on surface of sump?

 

[BaliReefBox]

kinda looks like a protein slime of sorts...just guessing though

 

[Mr. Mojo Rising]

I used to get that too, so I put a powerhead in the sump and it solved the problem.

 

[POMO]

Did your skimmer cup fill up and run into the sump?

 

[jerallenttu1]

Did your skimmer cup fill up and run into the sump?

No.