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10/19/2010, 09:20 PM
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#1 |
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Registered Member
Join Date: Oct 2010
Location: Puyallup, WA
Posts: 54
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Film in my sump
I got a white film on top on my sump water. Looks like I might have an oil substance on top also. Any ideas what is causing this?
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10/19/2010, 09:39 PM
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#2 |
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Reefer Madness
Join Date: Jul 2010
Location: Windsor, Ontario
Posts: 261
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its just a bio film that forms. You would have it in your DT also but it gets moved to your sump through surface skimming in you over flow. You can try to ski it out during you water changes.
And by the way it is oil
__________________
Reefing can't be an addiction, I don't smoke it or drink it. I just need it to be happy! |
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10/19/2010, 09:42 PM
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#3 |
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Registered Member
Join Date: Jan 2010
Location: Ft. Lauderdale
Posts: 300
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i used to just scoop it out with a cup
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10/20/2010, 02:25 AM
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#4 |
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I love Bass
 
Join Date: Nov 2004
Location: Ohio
Posts: 1,847
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add a small powerhead to your sump blowing the water toward the surface.
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10/20/2010, 06:45 AM
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#5 |
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Registered Member
 
Join Date: Feb 2003
Location: Northern VA
Posts: 17,691
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DOC's - disolved organic compounds. Surface agitation will keep it from forming and will allow it to be taken care of by the skimmer.
__________________
Adrienne The only thing to fear is fear itself....and spiders. |
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10/20/2010, 01:24 PM
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#6 |
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Registered Member
Join Date: Jul 2010
Location: Houston, Texas
Posts: 653
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I don't tend to get the film on my refugium side, only the return side. I added a Koralia nano pump in my skimmer to help agitate the surface.
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10/20/2010, 01:49 PM
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#7 |
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Registered Member
Join Date: Aug 2010
Posts: 4,041
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I agree on surface agitation. That film also prevents O2/CO2 gas exchange, so just use a small pump pointed at the water surface.
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