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Old 07-10-2008, 02:34 PM   #1
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Film on Water

Not sure what it is, but it's clear to the eye until you see it from a side angle with the tank lights. The stream from the powerhead makes a "dent" in it (think of a stream flowing into a lake in winter where the lake is frozen, but the flow from the stream makes a bulge of unfrozen water into the lake)
Is this what a protein skimmer eliminates? Is this a problem?
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Old 07-10-2008, 03:29 PM   #2
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A skimmer would take that out, make more surface ripple and it will keep it off the surface.
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Old 07-10-2008, 03:34 PM   #3
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I agree with Scott...surface skimming will keep the surface crystal clear. But pointing some of your flow towards the surface will help also.
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Old 07-10-2008, 08:08 PM   #4
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Do you have a sump and/or a protein skimmer?
You need more surface agitation as has been stated to break up the film. You want to get the surface rippled.
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Old 07-11-2008, 12:32 AM   #5
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I have the one powerhead pointing out and up and it ripples the entire tank surface. Then I have the filter rippling even more. Sometimes I get seasick looking at my tank .
Seriously, I guess I need either a skimmer or more surface action. My tank is very small at 20 gallons. I'm not thinking about installing a sump or anything elaborate, but thank you all as always
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Old 07-11-2008, 03:31 PM   #6
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At 20 gallons I don't thing I would add a skimmer either. More surface agitation would help break it up, but too much and the water will be sloshing out of the tank. A paper towel skimmed across the top would probably help get some out.
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Old 07-11-2008, 03:40 PM   #7
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What type of filter? Most HOB's and cans can be fitted with a surface skimmer of the 'non protein skimmer' skimmer family

Aquarium Surface Skimmer

Power Filter: Bio System Power Filter & Surface Skimmer from Drs. Foster and Smith
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