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Old 07-10-2020, 10:15 PM   #1
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Best way to control surface scum?

So I have a 6.5 gallon planted tank with a Betta, 15 shrimp, and an infestation of assorted snails from a bad batch of Giant Duckweed that I had failed to clean off before introducing into my system. For the longest time I have noticed that I get an accumulation of unsightly surface oils that are difficult to get rid of. I have tried a surface skimmer but it just keeps sucking in my duckweed. I have researched ways but to no avail. I guess I'm just out of luck and my only option is to remove the duckweed and plop a surface skimmer in there once in a while. I just wanted to check with you guys if there are other ways to get around it.

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Old 07-11-2020, 06:02 PM   #2
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I found water movement from the filter and less light seems to reduce it. Sometimes Iíll resort to using paper towel if havenít had time for a water change.
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Old 07-12-2020, 08:59 AM   #3
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Put some plastic mesh screen around the surface skimmer.
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control, surface

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